v1.11	06.02.1998 - initial NonPublic version
v1.12	16.02.1998
!!! archives are not compatible with previous versions
	 added new method for 24-bit BMP compression
v1.13	24.02.1998
	 slightly improved speed for HSC and MMC
v1.14	26.02.1998
!!! archives are not compatible with previous versions
	 improved compression rate for MMC
	 improved speed for MMC
v1.15	27.02.1998
	 reduced size of EXE-file
v1.16	02.03.1998
	 improved speed for MMC
	 fixed wrong filter determination on some BMP files
	 fixed required memory calculation for MMC
v1.17	08.03.1998
!!! archives are not compatible with previous versions
	 improved arithmetic coder to allow window size for ASC method >31900
	  (future releases)
	 size of EXE increases - two arrays are in CSEG now
v1.18	17.03.1998
!!! archives are not compatible with previous versions
	 added switch -mo<n> - maximum order for HSC (only with "a" command)
	 added switch -mc<n> - maximum context count for HSC 
	  (only with "a" command)
v1.19	20.03.1998
!!! archives are not compatible with previous versions
	 removed switch -3
	 maximal order now 1-8 (instead of 1-4 in previous versions)
	 default context count changed to 10000 (from 16000)
	  (for order >=5 maximal context count - 8000)
v1.20	20.03.1998
	 MMC renamed to BMC
	 added TMC - targa uncompressed 24-bit compression (without footer)
V1.21	24.03.1998
!!! archives are not compatible with previous versions
	 added DOS/WIN/WIN95 executables compression
	 fixed error in TMC compression
	 slightly improved -mm3 
v1.22	27.03.1998
	 added 16/32-bit executables recognition
	 improved EXE compression (context count=16000 by default)
	 added "artificial" BMP recognition
v1.23	2.04.1998
	 contexts 7 and 8 removed from program 
	  (for order>=5 max.context count=10000)
	 fixed hanging on some "natural BMP"
	 fixed error in determination of WIN32 executables
	 changed default order for WIN32 executables compression(from 4 to 5)
v1.24	3.04.1998
!!! archives are not compatible with previous versions
	 added TIFF(uncompressed,24-bit,single strip) compression (IMC)
	 added support for TGA with footer, BMP with comments, OS/2 BMP
v1.25	8.04.1998
	 fixed some TIFF's wrong determination
	 added new predictor for natural images
	 modified order and context count for natural images
	  (from 1:96 to 2:512)
v1.26	22.04.1998
	 added 'Macintosh' TIFF's determination
	 added -mp<N> switch (number of predictors for images:1-3)
v1.27	05.05.1998
	 new "natural" and "artificial" images recognition
	 fixed bug (dword alignment for TGA and TIFF)
v1.28	06.05.1998
!!! archives are not compatible with previous versions
	 added -mb<n> switch (base color for images:1-3)
	 added base color determination
v1.28c	11.05.1998
	 fixed bug : headers were lost after images extraction
v1.29a	18.05.1998
	 fixed bug : some files were extracted with CRC error
	 added -ms<n> switch (block size in pixels)
v1.29b	25.05.1998
	 fixed bug : moving to archive didn't work
	 added Sun Raster images recognition
	 fixed bug in Mac TIFF's recognition
	 modified default block size for natural images (from 16 to 10)
v1.29c	28.05.1998
	 added -mf switch (force images BMC/IMC compression)
	 fixed wrong Sun Raster images compression method recognition
	 changed images compression method selection
	 fixed bug which caused sometimes hanging while compressing large
	  images (wrong required memory determination)
	 added -mh<n1>r<n2>c<n3> switch (raw images compression)
v1.29d	28.05.1998
	 fixed stupid error in previous version: -mm switch doesn't work
v1.29e	01.06.1998
	 fixed bug: images with width >1365 were extracted with
	'CRC error'
v1.29f	02.06.1998
	 fixed bug: wrong minimal block size calculation when compressing
	  some images
v1.29g	03.06.1998
	 fixed bug: '-2 -' causes to compress files twice
	 fixed bug: in help screen (in DOC too) was written '-s' 
	  instead of '-a' (allow any attribute)
v1.30	16.06.1998
!!! archives created by this version may not be extracted by previous ones
	 added 2 new predictors
	 changed usage of -mp switch
	 changed default options for different kinds of images
	 number of contexts may be not divisible by 16
v1.31	23.07.1998
!!! archives created by this version may not be extracted by previous ones
	 added new predictor
	 changed default options for different kinds of images
	 DOS/WIN/WIN95 executables compression is used on EXE by default
	  (without -mm)
	 fixed two bugs: 
	  1)incorrect multimidea filters determination;
	  2)size of sliding window for ASC was occasionally truncated to
	  15kB since version 1.29a
v1.32	14.10.1998
!!! archives created by this version may not be extracted by previous ones
	 slightly tuned default options for image compression
	 added ZRLE(0's run-length encoding)(-mrN switch), which is used
	  by default on all images (may cause worse compression on some
	  natural images, but very useful for others)
v1.33	26.10.1998
!!! archives created by this version may be wrongly extracted by previous ones
	 added LFN support
	 some ex-JPG compression improved
	 contiguous strips TIFF's (for example, created by SEA) image
	  compression added
	 multimedia compression order default changed to 3
v1.34	01.12.1998
	 fixed bug: 'a','f','u' didn't work under pure DOS
	 fixed bug: some TIFF's were not recognized as images
v1.34a	09.12.1998
	 fixed bug: most files under WIN32 get 00-00-80 00:00 datetime
v1.35	28.01.1999
	 fixed bug: recursion under pure DOS didn't work properly
	 added 's' command: convert archive to SFX
v1.36	10.02.1999
!!! archives created by this version may be wrongly extracted by previous ones
	 fixed bug: DOS executables compressed with both methods were
	  sometimes larger than compressed with only one method specified
!!!	 fixed serious bug: some (rare?) WIN32 executables can't be
	  extracted after compression
	 if you don't specify method of compression directly, ARHANGEL
	  now tries to determine best method on small part of file (not
	  on whole file as previous versions do). Sometimes this may lead
	  to wrong decision. If you want to do this like in previous
	  versions, you MUST specify both methods in command line:
	  ARHANGEL a -1 -2 ...
v1.37	16.02.1999
!!! archives created by this version may be wrongly extracted by previous ones
	 added new predictor for 16-bit stereo WAV compression	
v1.37a	19.02.1999
	 added -mm5 switch to force executables compression
v1.38	01.03.1999
!!! archives created by this version may be wrongly extracted by previous ones
	 added new predictor for artificial image compression
	 fixed bug: previous versions could not handle more than 3 recursed
	  directories
v1.39a1	08.04.1999
!!! archives created by this version may be not extracted by previous ones
	 added '-z' switch: use RLE-predictor (methods 5 and 6 in header)
	 some Microsoft files (XLS,DOC,etc.) are compressed better:
	  -z is used by default
v1.39a2	19.04.1999
!!! archives created by this version may be not extracted by previous ones
	 modified '-z' switch:
	  -z0   means not use RLE-predictor (overrides default settings)
	  -z[n] means use RLE-predictor order n+2(by default n=1)
	  for example, -z3 means to use RLE only if repeated string contains
	  5 or more characters.
	 -z1 is used by default on HLP,XLS,DOC,MDB
	  for these files default context count changed to 16000
	 added Linux-executables(ELF) detection
	 compression of greyscale BMP,TGA must be little better
v1.39a3	19.04.1999
	 freshen or update with move may cause loss of files
v1.39a4	22.04.1999
	 added experimental '-mt' switch: try english texts predictor
v1.39a5	26.04.1999
	 fixed ELF-files detection
	 tuned multimedia compression default
v1.39a6	11.05.1999
!!! program is incompatible with previous versions
	 several bug fixes:
	  - extraction after -1 -z may not work,
	  - sometimes using -mm leads to crash,
	  - some files with -mt were not extracted correctly,
	  - compression of file with 0 length leads to crash,
	  etc.
	 switch -z[n] changed to -mz[n][f]
	 added force english text compression switch -mtf
	 added DBIII files detection
	 slightly tuned 24-bit image compression
	 improved english texts compression
	 optimal switch combination now is '-mm -mt -mz'!
v1.39a7	07.06.1999
!!! archives created by this version may be not extracted by previous ones
	 added order 0
	 fixed bug: SFX didn't correctly unpack english text files
	 fixed bug: some images were not compressed correctly 
	 fixed incorrect image-type detection tuning (worse compression
	  ratio) made in 1.39a6
v1.39a8	18.06.1999
!!! archives created by this version may be not extracted by previous ones
	 some mm-files compression ratio tuned
	 better english texts predictors (Szymon, thx. for ideas)
v1.40a1	05.10.1999
!!! this version is fully incompatible with previous ones
	 fixed bug: some text files were not compressed correctly (eg.
	  GRAMMAR.LSP from CANTERBURY CORPUS)
	 slightly improved english texts compression
	 added 'v' command: verbosely list archive contents
	  (file names are in the separate row to allow FAR plugins usage
	  Thx. Waldemar Tribus for suggestion)
	 small changes to improve compression speed (especially text
	  compression - ~10% faster)
	 changed arithmetic coder to slightly faster one (next version
	  may be 30% faster due to new coder)
v1.40a2	19.11.1999
	 fixed bug - sometimes ARHANGEL wrongly determines method of
	  compression resulting in worse compression ratio
v1.40	18.01.2000
	 fixed rare bug - if you try to compress WIN32 DLL's using
	  more than 10000 contexts, it may lead to hanging 
	  (thx. Jaime Tejedor Gomez for bug reporting)
	 fixed very dangerous bug (since version 1.33):

	  ARHANGEL abcde.lg *.txt  (simply forget to give a command)

	  under WIN32 leads to deletion of all *.txt files in current
	  directory
