Merge pull request pcdshub#62 from klauer/ci_update

CI: update to latest standards

Merge pull request pcdshub#60 from hhslepicka/pneu_valve_rbv_no

ENH: Normally Open Pneumatic Valve Widget

Merge pull request pcdshub#58 from hhslepicka/related_sign

ENH: Add custom cursor similar to RelatedDisplayButton for icon with expert screen.

Merge pull request pcdshub#56 from klauer/tests_in_package

TST: move tests into pcdswidgets/tests

Merge pull request pcdshub#51 from hhslepicka/fast_shutter_buttons

ENH: New Mixin MultipleButtonControl and FastShutter buttons

Merge pull request pcdshub#25 from hhslepicka/change_state_valves

Change state valves

Merge pull request pcdshub#23 from hhslepicka/fix_flickering_window

FIX: Avoid flickering icon windows by creating icons with parents = self.

REL: v0.1.0rc1