improve and cleanup template helper documentation
add tip about backslashes in twig, start with the table
there is no warning block, its called caution.
fix config example
another invalid warning that should be caution
Fixed typo

Fixed typo in reference link.
Merge pull request #328 from wjzijderveld/patch-2

Fixed typo
typo : doctrine:phpcr:init:dbal not doctrine:phpcr:dbal:init
Merge pull request #329 from benoitMariaux/patch-1

typo : doctrine:phpcr:init:dbal not doctrine:phpcr:dbal:init
Corrections and Todos

Bugs in the tutorial
Fixes for test run
Added note about manager_type
Merge pull request #325 from symfony-cmf/tutorial_corrections

[WIP] Corrections and Todos
Remove URL trailing slash redirect cookbook entry
simplecms is not available when following the tutorial
finalize table of template helpers
Merge pull request #314 from symfony-cmf/phpcr-templating-helper

improve and cleanup template helper documentation
Update templating.rst
Merge pull request #330 from EmmanuelVella/remove-trailing-slash-cookbook

[WCM] Remove URL trailing slash redirect cookbook entry
Updated CONTRIBUTING file