Update action_show.rst

Need to add the ShowMapper class in order for this to function correctly.
Allows to hide a field during an AJAX context
Update form_types.rst

Very samll typo that changes a too long phrase into a decent HTML list
Redesigned actions, improved button classes
Added 'create' actions to main navbar
Put add block into dedicated template & renamed option
Replaced SB-Admin with AdminLTE
Add an option to resize panels in edit view
Various fixes
fix rst
refactor the stylesheets and javascript options
Added user profile implementation + minor fixes
Add file paths
remove dependency to SonatajQueryBundle
Added support for top and bottom lines on admin dashboard
Add the ability to set up the top & bottom blocks classes
Appropriate title for config blocks

I think there should be appropriate title for code blocks.
Update architecture.rst

Wrong class were used in the child admin example ;)
Added title_mode to display image, text or both in title
Moved titleMode to pool options