Hotkey: correct order and add functionality for menu plugins
Hotkey: Some finetuning and remove double keys and functions
Hotkey: work-a-round for syntaxwarning
Hotkey: Solve GSOD when hotkey setup was called from a hotkey
Hotkey: make getHotkeyFunctions less globaly

As it was too staticaly e.g. when plugin were removed or edited hotkey did
not detect this.
Merge branch 'master' of git://git.code.sf.net/p/openpli/enigma2 into 4.2-development

Resolved Conflicts:
	data/keymap.xml
Merge branch '4.2-development' into 4.2-devtest