continuation of translate reference
Merge pull request #249 from gregquat/master

Book/form + review of Reference/form/types/options
Merge pull request #250 from StefTweet/master

Translate references sections
Create kernel.rst
Update kernel.rst
Update kernel.rst
Correct some errors sphinx
fix error sphinx
Merge pull request #252 from StefTweet/master

Correct some error in log Sphinx
Merge pull request #251 from bghazy/master

add a reference/configuration/kernel.rst file
Fixing many typos
Merge pull request #254 from gregquat/master

Updating Book files
Merge pull request #253 from gregquat/master

Updating Book files
Finish update references
Merge branch '2.3'
Merge pull request #255 from StefTweet/master

Final update references @ 04 06 2013
Merge pull request #256 from StefTweet/2.3

Finish update references @ 04 06 2013
[Cookbook] update assetic part
Update references

with last commit beetween 30 05 and 04 06
Merge remote-tracking branch 'origin/2.3'