Increase year to 2013
Merge pull request #2102 from WouterJ/bump_year

Increase year to 2013
Fix small typo in book/validation.rst
Fixed use of equals (closes #2109)
[Validation] Update CardScheme
Fixing minor grammer issues in CardScheme constraint
fixed explanations about how access control rules work
Furthering @fabpot's changes to the access_control explanations in the security chapter
Merge branch '2.0' into 2.1

* 2.0:
  Furthering @fabpot's changes to the access_control explanations in the security chapter
  fixed explanations about how access control rules work
  Fix small typo in book/validation.rst
  Increase year to 2013
Merge branch '2.1'

* 2.1:
  Furthering @fabpot's changes to the access_control explanations in the security chapter
  fixed explanations about how access control rules work
  Fix small typo in book/validation.rst
  Increase year to 2013
tweaked text
Merge pull request #2115 from Sgoettschkes/card_scheme

[Validation] Update CardScheme
Merge pull request #2111 from WouterJ/patch-3

Fixed use of equals (closes #2109)
[#2111] Minor language tweaks
made changes to take into account the new usage of the different content rendering strategies
fixed markup
switched usage of the include tag to the include function
Added missing path prefix `/admin` to access_control
Merge pull request #2121 from fabpot/content-renderer

Updated the docs for the new way to render partials/ESI/HInclude
[#2121] Fixing a now defunct include