Merge pull request #1 from cdelcol/fix-sim-links

Remove simlinks if they already exist before creating
Remove osx diff tooling and add nerdtree support
Fix bash profile not working correctly
Merge pull request #4 from cdelcol/fix-bash_profile-syntax

Fix bash profile not working correctly
Added ability to set git/github config settings via configure script
updated for homebrew
Merge branch 'git-config-personalize' of https://github.com/cdelcol/jeffheifetz-scripts into git-config-personalize