Update oh-my-zsh
Add iTerm2 preferences to repo

These should definitely be here...
zsh: Changed default theme

The agnoster theme is only good for solarized dark, I want to use light
sometimes.
vim: Always use powerline fonts

The approproate setting was in the .gvimrc file, so in terminal vim the
the vim-airline plugin didn't use the powerline fonts.
iTerm2: Updated configuration for tmux

Open tmux windows in tabs.
vim: Remove <Leader>s mapping

unimpaired.vim already has a convenient mapping to toggle spelling.
iTerm2: Add tmux profile
Add tmux configurations
vim: Cursor shape hack for tmux

When running vim inside tmux, the cursor is now a line in insert mode,
just like with a normal vim session.
vim: Add tmuxline plugin
tmux: Use colors generated by tmuxline.vim
tmux: Configure vi-copy mode and OSX fix

For OSX, reattach-to-user-namespace wrapper is used to allow access to
system clipboard.
tmux: Don't allow programs to rename windows
vim: Use system clipboard by default

When not specifying a register, "* will be used which means writing to
the system clipboard.
tmux: Fix for copying text from a terminal window
tmux: Separate OSX-specific configs

All OSX specific configuration is now in a separate file and only
sourced conditionally.
tmux: Shorten escape sequence time
vimrc: <Leader>gg to git-grep under cursor
vimrc: Mappings for quickfix and location list

These windows can now be opened with leader mappings.