Merge branch 'development' of github.com:Kroc/NoNonsenseForum into development
Updated DOMTemplate, `html` is now a property instead of a method
Fixed unable to delete corrupted posts unless signed in

THEME CHANGE: class "nnf_error" was added to element `article.nnf_post`
in "delete.html"
Fixed #170: Appending double-encoding bug

With thanks to Stephen Taylor for reporting
Updating headers to v25 (not actual release yet)
Merge branch 'development' of https://github.com/Kroc/NoNonsenseForum