this patch updates the git package to 1.7.3.2 and does two
optimizations to shrink the package size from 45MB to 590KB:
- create symlinks instead of hardlinks when installing (hardlinks get
lost when copying)
- convert the last six non built in tools to built ins
Patch from Bastian Pranzas
git-svn-id: svn://svn.openwrt.org/openwrt/packages@24175 3c298f89-4303-0410-b956-a3cf2f4a3e73
