Changed header
Removed useless space at end of a line.

Useless commit.
Adding conversion function to MIDI pulses in the interface
Added module MidiV, offering some shared utilities for the manipulation of
MIDI data in the framework defined by the mm library.
Started working on conversion form event type to MIDI
Merge branch 'music_dev' of https://github.com/GL-MPRI-2014/GL_MPRI_2014 into music_dev