Make Devise remember the session for 2 weeks

Add My Activity icon mobile. Close #3680

Fix Invite link box shows on search results page even if invites have been turden off - Fix #3707

Only include url to post for twitter when post exceeds maximum length or contains photos

update and fix services

Merge branch 'feature/fix-facebook-public-posts' of git://github.com/jaywink/diaspora into feature/fix_services

Conflicts:
	Changelog.md
	app/models/services/facebook.rb
	spec/models/services/facebook_spec.rb

Always use basic Facebook Graph API to post messages, fixes public posts. Remove unnecessary Facebook opengraph config items

Fix empty page after callback from service by redirecting to origin

Fix empty page after callback from service by redirecting to origin. Also make settings/services page use the same window when authenticating with other services instead of launching a popup.

Fix overflow button in mobile reset password

Change 'unless' to 'if' again because 'unless' is wrong here.

Also, add some specs and add it to the changelog.

This reverts commit b0fc9576, reversing
changes made to 0057e9ed.

Change 'unless' to 'if' because 'unless' is wrong here. [ci skip]

+ updated changelog

Conflicts:
	spec/lib/diaspora/fetcher/public_spec.rb

rake tasks cleanup