[SVN] r3761 (Blogging)

[Brad Choate]

Made headers case-insensitive. Now highlighting invalid headers as invalid.illegal.

Changed:
U   trunk/Bundles/Blogging.tmbundle/Support/lib/blogging.rb
U   trunk/Bundles/Blogging.tmbundle/Syntaxes/Blog (HTML).plist
U   trunk/Bundles/Blogging.tmbundle/Syntaxes/Blog (Markdown).plist
U   trunk/Bundles/Blogging.tmbundle/Syntaxes/Blog (Text).plist
U   trunk/Bundles/Blogging.tmbundle/Syntaxes/Blog (Textile).plist