item_type -> page_type on page controller
updated dependencies
Tidied up engine + form generator code.

* Reduced complex syntax
* Fixed some inconsistencies between form & engine

Conflicts:
	core/lib/generators/refinery/engine/templates/db/seeds.rb.erb
	core/lib/generators/refinery/engine/templates/readme.md
Use maximum on scoped data as conditions hash is deprecated.

Conflicts:
	core/lib/refinery/crud.rb
Don't need to require the entirety of refinerycms.
fix after merge master
added Blog as page type
update translations for links dialog
jquery ui autcomplete + minor js fixes
removed obsolete code even still fails some tests when slite3 db is used
added resources to links dialog
updated admin js locales
added config protect_from_dos_attacks for dragonfly and set to true by default
include refinerycms-links in gemfiles
new hash syntax in footer partial and <b> tag for current locale in locale_picker
ensure that canonical slug is really canonical
return back page tabs in admin form
undo featured image on page
update clientside js
minor admin ui style improvement