blog: added blog entry model
blog: added blog entry storage
blog: created controller function for adding blog entries
blog: moved integration tests
blog: implemented very simple blog entry creation page
blog: reworked create page

 * multiple tags can now be inserted
 * all blog related pages are now under /blog/
blog: added blog index page
added utf-8 support
blog: adjusted security settings
blog: added page to display entries
blog: validate blog entry creation
blog: implemented changing of entries
Merge branch 'blog'