[forms] Remove tip for skipping validation group section
add missing word
Added missing tilda (yml config)

The tilda was missing for the YAML configuration.
Added some standards
added a missing security advisory
Merge pull request #2987 from greg0ire/missing_word

add missing word
Merge pull request #2981 from bicpi/remove_tip_for_validation_groups

[forms] Remove tip for skipping validation group section
added CVE-2013-5958
Fixed invalid HTML

The <script> tag is not allowed to be self-closing.
Merge pull request #3065 from mweimerskirch/patch-1

Fixed invalid HTML
old mailing list link

updated with "symony2" list instead of "symfony-users"
Update form_collections.rst

The assignment to collectionHolder must be done within jQuery ready function, or else it will be null.
BTW, the variables in JavaScript do not need the $, which is confusing since in jQuery $ has a special meaning.
Update form_collections.rst

The variable collectionHolder must be assigned inside the jQuery ready function, but must be declared outside, since it is used also in other functions.

I have put back the '$' in front of names of variables having jQuery objects as values and for uniformity, also added it to collectionHolder.
Merge pull request #3157 from attardi/patch-1

Update form_collections.rst
[#3157] Removing one extra variable change
Merge pull request #2994 from WouterJ/namespace_standards

Added some doc standards
[#2994] Small tweaks to new standards