Rename getRange() to getSeekableRange() across media implementations
Ensure all relevant media properties are unset via reset()
Change 'range' property in event data to 'seekableRange'
Fix formatting
Merge pull request #192 from fmtvp/getseekablerange

Rename getRange() to getSeekableRange() across media implementations
Merge branch 'master' into new-media-api-memoryleakunfix

Apply change to getSeekableRange(), etc