Added mezzanine pagedown
Fixed language range and added remove_unused_translation_fields command
Added mezzanine_slides
Merge branch 'slides' into staging

Conflicts:
	core/settings/includes/common.py
	requirements.txt
resolved by adding.
removed deprecated debug toolbar config
repositioned slider to top of page.
Fixed slider translation problem
Added paul.whipp@gmail to code error notifications
Changed mezzanine-slides to use pwhipp repo while awating pull request #11
Merge branch 'staging'