MNT: rework alarm exceptions
Merge branch 'master' into cas_test
ENH: start of caserver utility
ENH: simple cas example
Merge branch 'master' into cas_test
MNT: dispatcher fix (autostart, detach context on exit)
ENH: run engine running property
ENH: channel access server in session manager; exit cleanup tweaks
MNT: PVPositioner can check the motion status too soon post put-complete move
MNT: relative imports in scan api
MNT: create SessionManager instance for examples, without IPython
MNT: remove get_sesion_manager args
MNT: channel access server disabled message
ENH: variable persistence (store on exit)
MNT: remove double push of session_mgr
MNT: fix example config, cleanup cas example
MNT: rework session initialization a bit
ENH: caserver prefix (config in beamline config?)
DOC: cas prefix, python pv, record
Merge pull request #32 from NSLS-II/cas_test

ENH: Initial channel access server implementation