Tweak the un-persistance of select metadata files...
Apply the package restructuring com.brightcove.samples.android -> com.brightcove.player.samples
Merge pull request #13 from BrightcoveOS/package-restructuring

Apply the package restructuring com.brightcove.samples.android -> com.br...
Merge to master and remove .idea/modules.xml from VCS
Do not persist AS *.iml files.
Finish merge from master.
Ignore the AS modules.xml metadata file.