* ./src/interface/main.c: tidied the help output code.
* ALL: removed underscores from option names and made a few options more self-explanatory, for instance --input_channel becomes --audio-channel; run vlc -H to see what has changed. * ALL: replaced many occurences of "plugin" with the word "module". * ./src/interface/main.c: moved all satellite-specific configuration options to the satellite plugin. * ./po/*: updated translations.