allow scram list to show projects of available arch if no version is available for current SCRAM_ARCH
bug fix: use basename instead of dirname to get the project version
some fixes for arch-less scram and scram db command
fix time stamp issue of toolfile w.r.t timestamp files
use config/config_tag is available as config checksum
updated for V2_2_5_pre1
added new tool chktool
bug fix: do not allow path, ld_library_path to be overridden while building
fixed typo
remove dependency on Compress::Zlib, set LOCALTOP at the time of project area creation
updated for 2.2.4.pre8
updated for V2_2_4_pre7
updated for new compiler support
fix xml type comments <!- --> in BuildFile.xml
bug fix: For "scram p <path>", <path> should be an absolute path
updated for 224p6
check for .SCRAM/${arch}/timestamps/self file for a valid release area
get default arch from tag collector if project is available for more than one archs
do not save un necessary items in ProjectCache.db
updated changelog and release notes
updated for V2.2.4.pre3
allow seperate read/write paths for scram links.db
lets start with 2.2.4.pre1 and if there is no issues then we can retag it as 2.2.4
updated for V2_2_4
internally only switch scram version when major version number is changed
updated release notes for 2.2.X
allows - and _ in the sub-dirs names
updated change log for xml comments in tool and BuildFiles.
merged new files from SCRAM_V2 branch
file ReleaseNotes.txt was initially added on branch SCRAM_V2_0.
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