Fix for null netstream in HTTPVideoProvider.calculateThroughput. Fixes player crash on rapid src change.
Merge pull request #131 from videojs/hotfix/null-netstream

Fix for null netstream in HTTPVideoProvider.calculateThroughput.
initial playing around, needs heavy refactoring
whitespace formatting
move files for logical layout
fdt whitespace handling is appaling
whitespace
hijack less play button control
support multiple preroll ads
play/pause adverts
add external events
duration
duration
pass time values to the api
skippable
random files
update readme
Bower package
Naming tidy up, move ad logic out of app
Check for null content