workaround https://github.com/ryanmelt/qtbindings/issues/69
fixed 2d plotting of quaternions
Merge pull request #10 from rock-core/workaround_qtbindings_issue69
connct_to_task: fix passing SIGNAL return values to getter method
Bugfix: Local variable used before it was initialized
Merge pull request #11 from saarnold/master

fixed 2d plotting of quaternions
Merge pull request #12 from maltewi/master

Bugfix: Local variable used before it was initialized
improve StateViewer from inside and outside

This refactors the StateViewer to improve the style (that's for the
outside), the current style making my eyes hurt. In addition, it
also refactors parts to:
 - avoid abusing classes by setting instance variables on them
   when using define_method is enough
 - avoid creating a task inspector until it is needed
 - renaming port_name to task_name since ... it is a task name
Merge pull request #13 from rock-core/improved_state_viewer

improve StateViewer from inside and outside
Merge remote-tracking branch 'autobuild/master' into orogen_loaders