verify contacts key only on initiating side of smp
additional null pointer saftey checks
STATUS_CODE_SELF_PRESENCE is not set in all case.
Merge pull request #705 from betheg/muc

STATUS_CODE_SELF_PRESENCE is not set in all case.
move task to back and not finish when hitting back button
remove unused imports.
MUC: set from when join muc.
Merge pull request #707 from betheg/joinmuc

MUC: set from when join muc.
update action bar with conversations updates as well
Merge pull request #706 from betheg/unused_imports

remove unused imports.
work around to not confuse irc transport with real conference servers
Update spanish translations
Merge pull request #709 from kruks23/translation

Update spanish translations
MUC: do not add yourself to the muc user list.
add an listener for the muc roster update.

this is for the ConferenceDetailsActivity to show
precence updates immediately.
Update german translations
MUC: option to set/delete bookmark in conference details.
Merge pull request #712 from kriztan/patch-2

Update german translation
Merge pull request #714 from betheg/muc_bookmark_cd

MUC: option to set/delete bookmark in conference details.
Merge pull request #713 from betheg/muc

MUC: do not add yourself to the muc user list.