Move footer_scripts.html back to the footer.

The last commit which reverted the location of js to the head unintentionally moved the footer scripts include to the head as well.  It does belong in the footer as the current location causes front end editing to break on production sites (when django compressor is enabled).
rtl: fix margins in admin
Fix ID check in admin_page_ordering view to prevent some redundant queries.
Revert bad get_FOO_display change. Closes #1032.
Don't strip quotes from twitter template tag args which was only needed in early Django versions. Closes #1034.
Remove global signal handlers in mezzanine.generic. Fixes #1036
Fix typo in docstring: model_save -> save_model

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extra : source : 4da7933a346b3873738e57928394bd19e4d4a398
Implement a new can_move dynamic page permission

Content types can override can_move() to control whether a given page
move in the page tree is permitted. can_move() should raise a
PageMoveException if the move is denied. PageMoveException takes a
single argument: a message explaining the reason for the denial.

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extra : source : d1aed481293e8e327c0c98ace1a163ec7c0ba50b
extra : amend_source : 85942de580068bc3a40fbf6efc79c1e4275dd903
page tree: reload on move exception to revert the tree and display any messages

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extra : source : abce9c1f673a6c34556b203f50396c5e31be79ad
extra : amend_source : 421bd505fa9b6cab9950e3a0d5721c56c4243c65
Added dollfires.com to sites in README.
Merge
Move LazyModelOperations into mezzanine.utils.models.
Added quantifind.com to sites in README.
Added mezzanine.utils.html.thumbnails to RICHTEXT_FILTERS setting, which converts images within richtext fields into thumbnail references. Closes #567.
CSS fixes for send to twitter admin checkobx.
french translation correction
Document the can_move dynamic permission
french translation correction
Merge branch 'master' of github.com:lucmilland/mezzanine
Added Luc Milland to AUTHORS