Documented 'Entities & Entity mapping' section
Documented "translation" section
Clearified controllers as services
Improved code of custom authentication provider cookbook article
Book/Doctrine : Adding a line about the "--no-backup" option ...

... in the "Generating Getters and Setters" section
Changing quote to (double backticks)
Removed extra spaces on is_dir check
Update yaml component docs to reflect 2.3 Yaml::parse(filename) deprecation

Using a filename as argument to Yaml::parse is deprecated as of 2.3 and will be removed from sf 3.0. Updated the documentation to indicate this, and include the warning from the source about the need to validate the input first.

Conflicts:

	components/yaml/introduction.rst
Changed note to caution; reworded; changed deprecation version

Looking at the Symfony code, this was actually deprecated in 2.2. Move the warning text to the front because the validation warning is more important than the deprecation notice.
Modified return statement place
Fix typo in override.rst
add missing word
Merge pull request #2614 from FlyersWeb/improving_custom_authentication_provider

Improved code of custom authentication provider cookbook article
Update cookbook/form/data_transformers.rst

there is an added ';' in this line
->add('dueDate', null, array('widget' => 'single_text'))
in the end
Merge pull request #2617 from gregquat/patch-10

Book/Doctrine : Adding a line about the "--no-backup" option ...
Changed view->set by view->vars
Merge pull request #2623 from jbafford/i2570-22

Update yaml component docs to reflect Yaml::parse(filename) deprecation
Merge pull request #2628 from Antek88/2.1

Fix typo in override.rst
Fixed build errors
Merge pull request #2632 from WouterJ/fix_build_errors

Fixed build errors