Added links to the DOMCrawler and CSS Selector components from testing page
Tidied up a bit of grammar and added a link to the EventDispatcher docs in the before/after filters article
Merge pull request #1631 from richardmiller/adding_links_to_relevant_components

Added links to the DOMCrawler and CSS Selector components from testing page
Re-adding article to cookbook map that had gotten lost
Fixed indentation.
Added change that brought me in doubt while doing this in my code
[#1632] Adding even more clarification for the importance of making a response public
Update components/dependency_injection/compilation.rst

fixed variable names in sample
fixed typos
made use of static:: instead of (and inherit from parent's tearDown method)
Added kernel.event_subscriber to tags list
Fixing 2 unrelated syntax issues
[#1643] Removing duplication in the list of DIC tags and linking between "Tags" section and DIC Tags reference document
Tiny spelling mistake: contruct vs. construct
Merge pull request #1649 from richardmiller/tidy_filters_article

Tidied up a bit of grammar and added a link to the EventDispatcher docs ...
Merge pull request #1652 from elnur/indentation-fixes

Fixed indentation.
adding after filter using kernel.response listener
Adding more detail to the DI compilation page
Updating to remove HTTPKernel specific method from di config processing examples
Adding a note that XSD validation of config files is optional