Fix problem where you can't open a tmux tab/window while not in a tmux window.
Merge branch 'v2' of https://github.com/gnachman/iTerm2 into v2
Merge branch 'v2' of https://github.com/gnachman/iTerm2 into v2
Fix bug where alt-click didn't use the right condition to determine whether to move the cursor
Remove some extraneous logging
Fix merge
Fix bug where new tmux windows would open in a tab