gscreen config -fix lathe HAL file for G95

Config didn't connect HAL properly for IPR mode
gscreen -make the unlock dialog only show numbers

There is no reason to show calculation buttons
docs - add info about required HAL connection for G95
gscreen config -add some buttonn labels to industrial

seems save save-as and reload lost their text labels...
docs -note that 'feedrate' actually is feedrate override
gscreen -add code for IPR mode

Unfortunaately linuxcnc doesn't report the active Gcodes properly
after a tool change so this doesn't actually work but when thats fixed...
gscreen -add code for IPR mode to display feed rate properly
Add a driver for the Mesa SSI encoder interface

Signed-off-by: Andy Pugh <andy@bodgesoc.org>
document the interpretation of MODULE_LICENSE strings
Fix MODULE_LICENSE strings, refer to our documentation of their interpretation

The kernel has never been documented as understanding the string "GPL v2 or later";
the string "GPL" is documented as indicating this intent.
Merge branch 'v2.5_branch'