attempt at displaying mplayer status live - gh-38
fix "mplayer was not found on this system" showing up when moving to next song
Merge branch 'pr/42' into popen-non-slave

Conflicts:
	mpsyt
moved inner functions to top-level
Merge branch 'develop' into popen-non-slave
draw a progress bar while playing a song
Merge branch 'develop' into popen-non-slave
Merge branch 'pr/45' into popen-non-slave
import unicode_literals from __future__ to ease compatibility between python 2 and 3
Merge pull request #46 from thomasleveil/popen-non-slave/unicode_literals

import unicode_literals
display progress status for both mplayer and mpv
capture mpv stderr stream got extract status info
Adjust default player args
use YT reported video duration for progress indicator
Merge branch 'develop' into statusbar