Revert "t0 test: try to work around a timing bug"

This reverts commit c47b7372373f33304743c9632855d8d53ee0f76a.

With set_wait=done, linuxcncrsh hangs if an MDI command fails.  :-(
Merge branch 'v2.5_branch'
French doc. update fr.po

Signed-off-by: Francis Tisserant <tissf@free.fr>
tests: try to work around a timing problem in t0 tests

It seems like if the UI-to-Task NML queues get too long, MDI commands
can get dropped.

linuxcncrsh has a mode, "set_wait=done", which is supposed to make it wait
for each issued command to finish before issuing the next, but it hangs if
the command fails (as many of the commands in this test do, deliberately).

This commit adds explicit, non-modal waits after some of the known-good
MDI commands.

I have been unable to reproduce the bug in my testing after this commit,
but I was never able to reproduce it very reliably before this commit
either...
Merge branch 'v2.5_branch'

Conflicts:
	src/po/fr.po
sim_pin script to simulate writing to hal pin

Supports multiple pins with three modes available for each:
  1) OnePulse
  2) ToggleValue
  3) 1 WhilePressed

Usage:
       sim_pin pin_name1 [pin_name2 ...] &

Note:  linuxcnc must be running
       The pin(s) may not be connected to a signal
fix build error by removing duplicate message definitions