Squashed 'sites/all/libraries/mediaelement/' content from commit 743f446

git-subtree-dir: sites/all/libraries/mediaelement
git-subtree-split: 743f4465231dc20e6f9e96a5cb8b9d5299ceddd3
Merge commit '625116d36213ebd864f18450ec1ed4c84d2dbc2e' as 'sites/all/libraries/mediaelement'