mimeview: Fixed !JavaScript syntax highlighting with Pygments, by working around Pygments not knowing the `application/javascript` MIME type.
mimeview: Fixed !JavaScript syntax highlighting with Pygments, by working around Pygments not knowing the `application/javascript` MIME type.

Closes #9288.


git-svn-id: eda3d06fcef731589ace1b284159cead3416df9b@9639 af82e41b-90c4-0310-8c96-b1721e28e2e2

walty8/trac,netjunki/trac-Pygit2,jun66j5/trac-ja,walty8/trac,jun66j5/trac-ja,jun66j5/trac-ja,netjunki/trac-Pygit2,jun66j5/trac-ja,walty8/trac,walty8/trac,netjunki/trac-Pygit2