Bash: alias 'fgrep' to 'fg'
Bash: add 'brew-graph' alias

This alias simply runs the 'brew graph' command and pipes it
to graphviz and outputs the pdf to the desktop.
Bash: add completions for 'hman' command
Git: added 'hash' alias to show current checkout

`git hash` will show you the short hash of the HEAD ref, allowing you
to quickly determine which revision you're on.
Bash: move display of brew status out of profile.

Now, the code to display messages that homebrew is out of date during
login is in the same .sh file that the rest of the launch agent is in,
not .bash_profile. Our profile now simply calls out to that script with
the appropriate argument.
Removed update-homebrew launch deamon out of ~/bin

~/bin is the place for general use binaries we may want to run from
anywhere (since it's in the path.) This agent belongs in my general
code folder (which isn't in version control, incidentally.)
Vim: turn on spell checking of git commit messages