Changes for theming preparation

fixes:
* replaced # with ; because it's depricated for a long time (how dare you Corstian Boerman ;) you did all others correct... )

theme edits:
* Edited menu.php so that the - is now styling in style.css because it's only styling, not content
* theme/default/posts.php and placed it back in app/pages/posts.php because of it's almost only logic and not necessary for theming
* theming.php for including includes like includes/disqus.php what is a feature in place of theme specific
Added Minecraft theme (meant for minecraft server homepages)
Added config.php to themes for theme specific options, possibly later rewrite this to use config class like configuration inside the theming class
Merge pull request #6 from lumius/master

Theming feature extended, Theme Minecraft addition, several bugfixes