Fix git_commit_all for OSX
Re-add git reset to the expanded numeric commands
$e{*} variables should be a maximum of 3 digits
Wait... they should be a maximum of 4 digits.
Added gau alias for git add -u
Using git rev-parse --show-toplevel to find repo root
Merge pull request #105 from galonsky/master

Using git rev-parse --show-toplevel to find repo root