DOC: Oh look, more typos.
ENH: tweak boilerplate example , better error message, accept list/tuple
ENH: use shorter key, handle collisions, use minimum unique prefix >= MIN_OBJID_LEN
ENH: add use_short_key option to ObjectRegistry
Merge branch 'feature/short_key_with_collision_handling' into develop

* feature/short_key_with_collision_handling:
  ENH: add use_short_key option to ObjectRegistry
  ENH: use shorter key, handle collisions, use minimum unique prefix >= MIN_OBJID_LEN
CLN: Refactor server creation
TRAVIS: enable PYTHONWARNING in seperate build, remove noise from others
CLN: cleanup docstring
ENH: clearer seperation between short key mode=False/True