Merge pull request #210 from gregquat/2.1

Fix typos + translation of cookbook/form/create_form_type_extension
translating cookbook/form/create_form_type_extension
minor tweaks after PR #207
fix minor typo
Update from doc 2.1 update at 16/11/2012
Commit
8b05034e223c8a9877da86668e5cdd7df9a6cfef
3a151ea5de36a8c085377ed4bf70d043e86870be
cb9c9d1e00dd13f3b4334c93b3364fcd9fccc55a
feb9b22a2b53bdbfac5280efd9a30f79cfc4d77d
46dfc4299c9859fd5b67711e8d184e7134b4b489
99ceb34292d7fce30da58d890641ebd13a1aee84
3615325e4526f06750114b29efc2a89fe56a6ab0
Minor Tweaks in Components/Console/Helpers
And delete some extra available only for master
Update from PR #212 by @jbcrestot
Update from #216 by @Gregoire-M
Updating from PR #217 by CedCannes
fix typo
Merge pull request #215 from StefTweet/2.1

Updated at 16/11/2012 of  symfony / symfony-docs
Merge pull request #213 from CaptainMat/validation

fix minor typo
adding missing line in book/routing