Made membership accept account email through the api

Conflicts:

	Gemfile.lock
refreshing serialized page templates works now + improve the with_scope tag + replace paths to woff assets in all the css files
add migration for localizing redirect_url of pages
do not stop the execution of the migration if a theme_asset does not have a file + add the logger when rendering a liquid template
Merge pull request #793 from colibri-software/fix_membership_api

Made membership accept account email through the api
The API now returns a proper content type when asking for a given entry.
Merge pull request #799 from peterssonjesper/master

The API should return a proper content type when asking for entries
use parsed_response to retrieve remote entries + when the type of an editable_xxx element was changed, in some context, it raised an exception, the process now is more consistent
[➠] Added translation for “de.locomotive.shared.menu.translations”.
Merge pull request #801 from mkempe/fix_admin_ui_de

Added translation for “de.locomotive.shared.menu.translations”.
fix issue #798 + domains are now available directly in a liquid template as well as the current host
Merge branch 'master' of github.com:locomotivecms/engine
Merge pull request #796 from GarPit/master

add migration for localizing redirect_url of pages
remove leading and trailing white spaces for the editable_control tag (close #794)
new version of the mounter: Mongoid::Fields::I18n is now thread-safe