Install: Fix Theme settings are not setup in InstallController

Since InstallController purposefully does not extend AppController,
`$themeSettings` view variable is not populated.
Install: Minor style fixes for buttons and input classes

Need to use span11 for inputs (instead of default class configured in theme)
here.  This is because we are using input-append addons which screws up the
form size.
Merge branch '2.1-install'

* 2.1-install:
  Install: Minor style fixes for buttons and input classes
  Install: Fix Theme settings are not setup in InstallController
Fix: Missing $this in variable name

Closes #561
Fix: Don't set empty when multiple selection is allowed

Related: croogo/croogo@7433501
Set User order property in constructor instead of class itself

The static order property caused issues when doing finds on the User
model with a different alias because 'User' would be used as name in
the find.
Update bake templates using the newer view style
Croogo::adminAction() accepts $confirmMessage argument

- When using 'POST', pass new confirmMessage to Form::postLink()
- Use the scriptBottom block
Merge remote-tracking branch 'cvo/master'
Merge branch '2.1-templates'

* 2.1-templates:
  Croogo::adminAction() accepts $confirmMessage argument
  Update bake templates using the newer view style
Regenerate croogo-bootstrap.css
Removing obsolete css from layouts

Continuation of e6ed770626df256
Updating AUTHORS.txt for release 2.1.1
Updating VERSION.txt for release 2.1.1
Remove view variable escaping in CroogoErrorController
Merge pull request #566 from dakota/patch-2

Remove view variable escaping in CroogoErrorController
Parse booleans from strings in ParamsBehavior
Add check to preserve 1/0 numerics.

Bool test would naturally convert 1/0 to true/false, which may not be
desired in some cases.
Added unit tests.
Added asserts to check output types explicitly.