Squashed 'bundle/syntastic/' changes from 1852b5d..edcb2f2

edcb2f2 Merge pull request #908 from jrahm/master
9cef2f5 Cleanup mxmlc checker.
7b29bea New syntax checker actionscript/mxmlc
754045a fixed typo
96dd453 added --vapidir support for vala

git-subtree-dir: bundle/syntastic
git-subtree-split: edcb2f2baf1ad677cc5b5b2c9e939b915451096d
Merge commit '8e90191dacc3d2b0eb4de06556f20fc228cf134f'