Manage hours in times

· Changed the total time algorithm in order to take account of HH:mm:ss
formats. (For players with remaining time instead of total time)
Manage hours in times

· Changed from fixed with to float left / right to fit time with hours.
Added Mixcloud support

This one is a little tricky as it is a player for sessions rather than
tracks. Fav, next and times is for sessions but the artist and track is
for the current part of the session.
Suggestions in this player behavior are accepted.