Temporary disabling YUV2RGB library

Change-Id: Ie7c49ef6d4449e45b26f26bb381f12d24ce4ffa5
Ability to change scale type

Summary: Now user can change scale type for vied playback. Scale
type changes can be populated with animations.

Change-Id: Ic5bb26ca0e7859ff0eeea661e39ec06cec9f9693
Ability to turn off subtitles

Summary: Now user can play video without subtitles even if there
are some in video file.

Change-Id: Ie319936bd82f928d7f51a084daf89a2fd4aae92c
Updated README file

Summary: Fixed wrong file location in readme file. Added information
about sending bug reports.

Change-Id: I1156593ace066f426f489d2664f6d9c8c82ac581