Reduce the number of database queries done by the Submission.get_flags method in the demos app.

Do some PEP8 work while I’m here.
Fixed a few import errors.
Merge pull request #1875 from jezdez/taggit-homepage-queries

Reduce the number of database queries done by the Submission.get_flags method in the demos app.
Fix namespace collision with deleted documents manager.
Merge pull request #1883 from ubernostrum/document-deleted-manager

Fix namespace collision with deleted documents manager.
Fixing deleted_object*s*
Prevent last child spacing empty space side effect
Merge pull request #1885 from darkwing/deleted-objects

Fixing deleted_object*s*
Merge pull request #1886 from darkwing/main-center-clear

Prevent last child spacing empty space side effect
Clean up wiki templates; remove useless elements
Update revision dashboard templates, remove cruft
Adding more useful optimizely comparison logic
Use current kuma-lib to fix error.
Update wiki javascript to modern jQuery.  Removing section editing.
added fontawesome.css to redesignmain concatenated files
modified path in fontawesome.css to find the fonts
Fix a typo in DeletedDocumentManager.
Merge pull request #1894 from ubernostrum/document-deleted-manager

Fix a typo in DeletedDocumentManager.
Added Foreman Procfile for easier development running.

Foreman is the tool of choice for manageing processes on Heroku, so it is “battle tested”.
It starts all or one processes as defined in the Procfile, e.g. `foreman start` starts all. `foreman start web` starts webserver etc.

This needed some other minor changes that were preventing a few things:

- made the /etc/profile.d/vagrantruby.sh file exectuable to automatically append $PATH with the path to the Ruby environment (/opt/ruby/bin)
- fixed the /etc/sudoers to not prevent running ruby installed executables (in /opt/ruby/bin) when using sudo **this may need two runs of puppet to fix it**
- fixed trailing whitespaces in puppet files
- allowed using the puppet gem provider
Added a few more useful packages.
Removed vmware specific hacks again.