Complete Post Manager
Attachment: sort in menu order
Model: add Post Manager Service
Implement Post Meta Manager
Fix typo
Twig: implement attachment twig ext
Twig: Implement Blog Twig Ext
Twig: implement Post and Option Manager Twig Exts
Twig: Add Post Meta and Term Manager Twig Ext
Model: fix missing use
Twig: combine all twig exts into one
Twig: remove blog manager, fix findTermsByPost param
Twig: add findCategories/tags by post
Use order by doctrine
Merge pull request #4 from luiges90/model-managers

Implement Remaining Model Managers and Twig Extensions