Gunter from master

I have made some interesting changes to git-fat

I'm running the two test scripts without errors.

1. Automatic calls to git fat push/pull from native git commands via gi hooks

2. Creation of digest names with full pathnames to easily associate files with hashes. 
Notice the subdirectory in "sub/b.fat.." below.
$ git fat status --all
sub/b.fat.6ecec2e21d3033e7ba53e2db63f69dbd3a011fa8
a.fat.6df0c57803617bba277e90c6fa01071fb6bfebb5
a.fat.c3d2d7d1d2f2d206b3bd04aab8c4f1036def490a

3. My branch also has the changes from Ozkan's jdsu-ger branch for the creation of a "share" config that stores fat objects in a shared directory location that allows for fine grained push/pull (only push/pull non symlinks)