using tar instead of tarfile module
method is no longer used in misc.compress_dir()
updated BUGS section in spm manual page
increased timeout to 10
removed redudant html.sh script
cleaned up unused functions in misc library
Adjusted bspm.sh script
preserve is actually needed in some cases
bspm is no longer required
removed irrelevant scripts
removed SBINDIR leftover
Version bump to 1.7.0