Add dropbox to startup.
Added override for Aristaeus.
Updated Sublime Settings for better indentiation.

- Updated standard preferences for better indentation handling.
- Also added Wrap Plus package with "alt+q" keymap for this as well.
Changed handling around Sublime Packages for .gitignore.
Better handling for HOSTNAME variable.

- Added support for SHORT_HOSTNAME which will also give the hostname of
  the machine, and not the FQDN when available.
- Also added support for DOMAINNAME which gives the suffix to the
  hostname.
- Finally, altered the display of these variables for within screen and
  on the bash command prompt.