Movie Player HELP screen crashes if any buttons are set to activate plugin functions

[prl]

If the user configures a button in Movie Player to perform a plugin function rather than a function built into the MovieSelection class, the HELP screen for the Movie Player will crash on entry.

Reproduction steps:

From live TV, MEDIA, then MENU>Settings. Then reconfigure, say, Button Red to a plugin function, like Cutlist Editor. Then GREEN OK. Then in Movie Player, HELP. Crashes.

Crash log attached, for the scenario described.

[Peter Urbanec]

Fix bug 357 - Movie Player HELP screen crashes if any buttons are set to activate plugin functions

Added code to assign help text to user-definable functions that invoke plugins.

→ <<cset 5ab45bc775ca>>

[Peter Urbanec]

Fix bug 357 - PEP8 cleanup

[pep8] ignore=W191,E302,E501

→ <<cset 3a913fdbf2ca>>

[Peter Urbanec]

Merged in prl/easy-ui-4/Fix-bug-357 (pull request #82)

Fix bug 357 - Movie Player HELP screen crashes if any buttons are set to activate plugin functions

→ <<cset 098e86560927>>