removing variables that never used
The settingslist() code only replicated showvisitorprofile(), so remove
founctions and point Twig_Function_Method() to showvisitorprofile
Add $visitor_id to update() function paramters.  Function doesn't seem
to be called presently, but it is one less "red flag"
Replace fetachAll()/array_shift() with fetchAssoc().

c.f.
http://doctrine-dbal.readthedocs.org/en/latest/reference/data-retrieval-and-manipulation.html#fetchassoc
'edituser.twig not found' error on edit profile
Code comments with some TODO
Remove some redundancy and add comments to checkvisitor() and
showvisitorprofile()
Merge branch 'master' into general-cleanup

Conflicts:
	app/src/Bolt/Composer/CommandRunner.php
Correcting path to edit permissions in user admin pages
Remove Markdownify library
Remove markdownify async controller
Remove bindMarkdown() JS function as Markdownify library is now removed
Remove commented out script tag used for Markdownify
Cleaned up Bolt/Composer
Cleaned up Bolt/Configuration
Prevent warning in array_search.

Goes with bda8e76563ce70248faedbb0f7b3128b444fe82e
Cleaned up Bolt/Controllers
Merge pull request #1482 from GawainLynch/feature/Authenticate_Cleanups

More authenticate cleanups - thanx @GawainLynch
updated facebook information
Cleaned up Bolt/Filesystem