Add wdiff for word diffing in git
Don't delete tmux pair session on dettach (ouch!)
Mux is now pair friendly; Add some vim macros

* `gem install mux -v 0.6.0.pre.3` for compatible mux
* Vim macro to align gemfile versions (1 by 1)
* Vim macro to open Github issue for current line (assuming line 2 has
  Github issues URL and first word of line is issue id)
* Ditching chat pane (editor is now pane one) (still need to fix leader in vim)
Faster rails boots; More git aliass; Auto ls on cd
Add ghi (github issues) aliases (LOTS OF FUN)
Use $SHELL (not $0) for direnv (fixes . ~/.zshrc)
GHI clean up (extra sed to get line ending w/ a #)
Add POINTS global for calculating total points
Missing quote for POINTS .. oops
Add gbwho (show remote branches' latest committer)
Fix gbwho quotes
Fixed other gbwho escapings
Switch (my)issues(col) to func so you can pass args
Odd bug in mux 0.6.0; Need 2 editor tabs to make 1
Add aliases for each ghi command

* Rename ghico/ghico to istart and ifinish
Add ims for setting a github issue's milestone
istart didn't abort properly
Add ihigh, imed, ilow for assigning priority
Assume space before @o vim macro (open github issue)
Global zsh alias P to POINTS; pro tip: `<a.txt P`