Fix two typos: assoziated -> associated.
Fix typo: Preemptivly -> Preemptively.
Merge pull request #58 from jelmer/fix-typo-assoziated

Fix two typos: assoziated -> associated.
Merge pull request #59 from jelmer/typo-preemptively

Fix typo: Preemptivly -> Preemptively.
tried to fix some race conditions. not adding duplicate candidates. needs more checks though
added very basic, very untested gui on the receiving side
made ui with sending images a little smoother
jingle sessions now get terminated proberly on success
added clear history dialog (no funcionality)
fixed possible race conditions with presences
fixed #63
fixed destination bug
put more string into strings.xml
lot of cleanup in jingle part
work around for bug in xmlpullparser
Merge branch 'master' into development