Docs: Fix a typo left over from rebranding

Change LinuxCNC2 to LinuxCNC, in four languages.
Not five languages because French was already done,
thanks, Francis!

Signed-off-by: Kim Kirwan <Kim@KimKirwan.com>
Docs: Fix typo left over from rebranding

Found another one.
Changed LinuxCNC2 to LinuxCNC in one file.
I think that's all of this kind.

Signed-off-by: Kim Kirwan <Kim@KimKirwan.com>
keep 2.5 in synch with master docs
tests: increase task/motion timeout

This makes the tests pass more reliably on my anemic VMs.
Merge branch 'v2.5_branch'