Fix input() making multiple checkboxes.

If you used the new input type name the output would be incorrect and
a notice error would be triggered.
Fix radio widget and label=false.

Use some strpos tricks to handle the situation where nesting labels are
being used but label=false.
Fix missing label elements in input(type=radio)

This makes radios like multicheckbox where an additional label is output
for the group of radio buttons. This label has a not entirely correct
for attribute. I've also added tests for label=>false scenarios.
Remove meaningless and possibly wrong for attr.

The generated for attribute for input group labels was pretty much
always wrong. Instead of trying to make it correct just omit it.
Remove for attributes for other group type inputs.

date/time/datetime inputs have long had their for attributes wrong as
well. Lump them in with other group type inputs that no longer get for
attributes that are just wrong.
Fix issue in PoFileParser where only slashes from translations of type array are stripped.
Add test case for quoted strings
Merge pull request #5006 from cakephp/fix-radio-multi-checkbox

Fix radio & multicheckbox
Merge pull request #5009 from josbeir/3.0

Fix issue in PoFileParser where only slashes from translations of type array are stripped.
Fix FormHelper::radio() options docs
Add missing 'b' to radio docs
Use chdir() instead of calling multiple commands.

This improves compatibility with windows, and continues to work on *nix
systems.

Refs #5011
Fix doubly inflected variable names in controller task.

Variable names should not be doubly inflected.

Refs #5002
Add FlashComponent property to PHPDoc for Controller class
Merge pull request #5013 from jerzflow/patch-1

Add FlashComponent property to PHPDoc for Controller class
Cosolidate doc block headers
More doc block corrections.
Don't mutate cwd.

Running composer dumpautoload should not mutate cwd.

Refs #5011
Make method name better represent what it is going to do.

Refs #5002
Merge pull request #5012 from cakephp/issue-5011

Fix a few issues.