[sublime] Update PackageControl package to 1.6.4
[sublime] Switch Package Control to .sublime-package file

The new version of Package Control is bitchy about the name of the
directory it's installed in.  So we'll just symlink the sublime-package
file instead and let ST2 install it so Package Control will STFU.
[bash] Add ssh-agent shutdown to bash_logout
[i3] Add keybinds for suspend / lock
[sublime] Stop ignoring the Vintage package