hookup_moveoff.tcl: fix fb connections

Connect all pins that were inputs on the original feedback signal
together to maintain original pid feedback connectivity
(fixes runaway with misconnected pid feedback)

also
  Use highest_joint_num for personality= in case ini file omits
  AXIS_n sections  (xzc for example)

  Add note on alias names in setup_pinnames()

Signed-off-by: Dewey Garrett <dgarrett@panix.com>
tests: simplify t0 test and increase task queue usage

We now only wait for Done at the end, instead of in every call to
introspect.

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>
tests: fix a race condition in the toolchanger/toolno-pocket-differ test

It's a terrible idea to use sleep to synchronize two threads.  Better to
ask linuxcncrsh to wait for linuxcnc to finish.

Signed-off-by: Sebastian Kuzminsky <seb@highlab.com>
Merge remote-tracking branch 'origin/2.6' into 2.7
Merge remote-tracking branch 'origin/2.7'