changed owner-side hint notification handling so it creates a new connection object locally
some Bugfixes
implemented open and connect in owner webapp
Merge branch 'devel' into feat-bugfix
added facets to connect call from new GUI, adapted message handling in backend accordingly
Merge branch 'devel' into feat-connect
small refactoring of WonMessage and connected classes, connect now working
replaced @literal with @value
fixed error handling during processing of connect response
fixed counting of unread notifications and their display
some bugfixes

- url routing fixed
- dropdown now really selects post type.
Merge branch 'devel' into feat-bugfix
Merge branch 'devel' into feat-postbox
Merge branch 'devel' of https://github.com/researchstudio-sat/webofneeds into devel