Document TimeHelper::nice takes $format as param

As per the [TimeHelper::nice source code](https://github.com/cakephp/cakephp/blob/master/lib/Cake/Utility/CakeTime.php#L349), it can take $format as param. 

So Document that in the book.
Follow command syntax in example to create a new aco
Fixed typo in security component page

once instead of one
Merge pull request #566 from ravage84/patch-1

Fixed typo in security component page
Merge pull request #565 from jbrusich/patch-2

Follow command syntax in example to create a new aco
path in windows's systems

was ..\Cake\lib\Console
but seems to be ..\lib\Cake\Console
Merge pull request #568 from matheuseduardo/patch-1

path in windows's systems
Fixed typo on Dispatcher.filters key name
Merge pull request #569 from sophistry/master

Fixed typo on Dispatcher.filters key name in docs
[fr] Follow #564

music notes in fr/models/data-validation
[fr] Follow #565

acl shell commands
[fr] Add missing part in security component
[fr] Follow #568 and add missing part on windows configuration for path
[fr] Follow #569 in dispatch-filters

Fixed typo on Dispatcher.filters key name
simple malapropism, change 'make' to 'may'
Merge pull request #570 from bcrowe/patch-1

simple malapropism, change 'make' to 'may'
dispatch filters grammar corrections
Merge pull request #571 from bcrowe/patch-2

dispatch filters grammar corrections
Update html.rst

changed the input from audio.mp4 to audio.mp3 in line 438. Also rectified the errata in output for the same
Merge pull request #572 from ayudhDas/patch-1

fix for code example error for HtmlHelper::media() in html.rst