Sync w/ trunk

 - (bash_profile) Display specific BSD Operating system when logging
   in
 - (emacs.d/Makefile) Remove unnecessary targets
 - (emacs.d/init.el) Be more intelligent about determining installed
   packages
 - (snippets) Add time zone to boilerplates
Add Emacs 24.4 customizations

 - Install sr-speedbar via packages
 - Customize log-edit-hook