new version of dsktool.rb released

[jonnosan <jonnosan@gmail.com>]

I've just released version 0.5.1 of dsktool.rb, a ruby commandline
tool + library for working with DSK files (as used with Apple ]
[ emulators).

Information on how to install and use dsktool can be found at
http://instiki.jamtronix.com/dsktool/show/HomePage

This release adds CP/M file system support - the full list of file
systems supported is:
CP/M (read/write)
DOS 3.3 (read/write)
NADOL (read/write)
ProDOS (read only)
Pascal (read only)

In addition, the following file formats are interpreted:
AppleSoft BASIC (converted to ASCII text)
BIN files can be disassembled
AWP (AppleWorks Word Processor) (converted to ASCII text)
Integer BASIC (converted to ASCII text)
HIRES Graphics (converted to PNG)
MBASIC/GBASIC (converted to ASCII text)
NADOL (converted to ASCII text)
S-C Assembler (converted to ASCII text)

The package also comes with 'dskexplorer.rb' which is a browser based
tool for exploring either local or remote dsk collections.

--------------------------------------------------------------------------------
Changes:
v0.5.1
Added read/write support for CPM disks
Added support for unprotected MBASIC files

v0.4.3
Added ability to read .nib files
BUG - dskexplorer.rb - remote (http) browsing was busted
added "--ascii" option to dsktool.rb

v0.4.2
BUG - "-d" had become "delete" instead of "dump"
CHANGE - dsktool.rb - only show disk info on --catalog, not every
command
CHANGE - rename sector orders
CHANGE - dskexplorer.rb - show full path names

v0.4.1
Added write support to NADOLDisk
Added write support to DOSDisk
Added "--add" option to dsktool.rb
Added "--delete" option to dsktool.rb
Added "--tokenise" option to dsktool.rb
Added "--init" option to dsktool.rb
Added "--bootcode" option to dsktool.rb
Added "--filetype" option to dsktool.rb