Merge pull request #6 from ipa-bnm/master

fixed quaternion read in bug
first version of Palette Teacher
minor fix
first version of PalettePoseTeacher: teaching and clearing three representative poses via button clicks
included modified version of LTH's getPaletteFrameFromThreePoses()
implemented final functionality: subscriber to  ps_move topic triggers pose teaching + button click triggers tf lookup from base_link to teach_in_handle frame
minor bug fix in teachers.py
handled some tf lookup rospy.time problems
lookup bug fix
bugfix in terms of 'not every logic operator in Python is valid if written in words'
removed orientations from GUI
first modifications due to pc3 tests
adjusted callback structure for faster teaching
added all available teachers again
intermediate state
stable version:tested on PRACE booth
minor fix in PoseTeachInHandleTeacher
added interger support
Merge branch 'flgs'

Conflicts:
	src/cob_teacher/rqt_teacher.py
changed teachinhandle teacher topic name