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
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
Cleaned up Bolt/Provider