Merge pull request #186 from kruks23/development

Update Spanish Translations
small fix ( zerfifikat -> zertifikat )
updated languages
Merge pull request #188 from DerHamster/worktest

small fix ( zerfifikat -> zertifikat )
don't display 'enter password' message if OpenKeychain is not installed. made status messages in chat not selectable
Muc Icon tile color fix
Merge pull request #193 from strb/mucicons

Muc Icon tile color fix
cleanup
fixed scrolling issues
select presence dialog now suggests last used presence
groundwork for offline otr messages
made muc join easier if muc server is known. added room to key words
send otr messages when contacts comes online
fire onContactStatusChanged only on online/offline changes. not on status changes
finished offline otr
fixed #201
further bullet proofing
moved last seen to contact details
status waiting for images sent offline
offline sending of images