RF: 'name', 'startVal' and 'stopVal' should be inherited from base class (VsiualComponent)
ENH: unifying hint strings for 'startType', 'stopType', 'startVal' and 'stopVal' (except Movie and Sound components)
unifying hint strings for 'stopVal' of Movie and Sound components
ENH: add tooltip for 'startType' and 'stopType' in the preference dialog.
DOC: edit comments
Merge branch 'feature-localization' of github.com:hsogo/psychopy into feature-localization

* 'feature-localization' of github.com:hsogo/psychopy:
  ENH: add tooltip for 'startType' and 'stopType' in the preference dialog.
  unifying hint strings for 'stopVal' of Movie and Sound components
  ENH: unifying hint strings for 'startType', 'stopType', 'startVal' and 'stopVal' (except Movie and Sound components)
  RF: 'name', 'startVal' and 'stopVal' should be inherited from base class (VsiualComponent)