Update mongo version
Use sf version 2.3.19
Update sf version
Merge branch 'develop'

Conflicts:
	composer.json
	composer.lock
Merge branch 'develop'

Conflicts:
	composer.lock
Fix layout
Fix layout and text
Fix layout
Fix layout
Fix layout
Add StofDoctrineExtension
Use DoctrineExtension to generate slug
Merge branch 'use-sluggable'
Use FrameworkBundle:Template:template to render action w/o controller