Fixes for Power Pmac

This contains the following fixes:

• Trajectory scan race condition on very short trajectories
• PPMAC Improvements to the monitoring of coordinate system axis DMOV status
• PPMAC enable coordinate system axes before a move
• PPMAC improved system tests
• PPMAC improved sample Project etc/PowerClipper

Release 2-4-6

Changes

• Pulled in the documentation branch.
• Fix leaking handles on reconnecting to power pmacs.
• Support PVT trajectory scans on power pmac.
• Fix bug: kill un-kills other axes in a CS
• Fix compilation issues on EPICs v3.15+
• Expose parent port names as PVs (for Malcolm integration)
• Reset CS demands after various events (limits, Following Error, Homing etc.)
• Fix bug: axis 8 may move to zero on IOC restart
• Fix race condition: DMOV may go to 1 before a final position is reported on CS axes.
• Fix CS abort button in EDM screens
• add simple-power-pmac sample IOC for power pmac

2-1

R2-1 (May 23, 2018)

Changes

• restore continuous integration (new synapps dependencies)
• Fix seg fault on startup with no brick connected
• clean up compiler warnings
• Add Power Pmac IDE project as example configuration
• Get all system tests working against PPmac
  • except trajectory scan tests - not yet supported
• Fix coordinate system control features for ppmac
• Added $(PMAC):PollAllNow PV -
  • put value 1 with callback
  • synchronizes the current brick status
• fix issues with feedrate check (now compatible with PPMAC)

2-0-1

R2-0-1 (May 23, 2018)

Changes

• fix example IOC to build outside of Diamond

2-0

R2-0 (May 23, 2018)

Changes

• fixes to issues with Coordinate System motors demand and read-back
  inconsistency
• fixes to any issues with race conditions due to a lack of parameter
  library locking
• now works with clipper
• supports 'direct demands'
  • for avoiding the pitfalls of the motor record (particularly with
    deferred moves)
• implements coordinated deferred moves:
  • a set of motors can be commanded to start and complete motion at
    the same time.
• updated edm GUI
• simplified templates and builder support
• stop now always works
  • stop a trajectory scan or coordinate system motor by clicking
    stop on one of the real motors
• full suite of system tests using py.test

Note that I'm now making dls-master and master the SAME. To make
this friendly to external users I have:-

• I have fixed the etc/Makefile so that it skips the folder if builder
  is not available
• I have commented the required configure files to say they need
  changes for each site
• I have added a non-builder example IOC (with edm GUI)