FragmentLoader.as: remove magic constants
FLEXPATH variable when building plus docs

Just a micro change to make FLEXPATH a variable when building and
making life a bit easier (with building docs included) and update docs
support for video.js 4.6 to 4.8
Merge pull request #94 from mediastream/master

FLEXPATH variable when building plus docs
flashlsOSMF.swf: fix bitrate computation
related to #97
Merge branch 'master' of https://github.com/mangui/flashls
Merge remote-tracking branch 'mangui/master'