Merge pull request #1662 from dereuromark/2.5-coverage

2.5 coverage
Merge branch 'master' into 2.5
Case insensitive validation inList option. Resolves ticket 3521. Added two tests to proof the faulty behavior of $strict here. Also address the faulty behavior in multiple() and replace it with case sensitivity.
Updated doc block readability in bootstrap.php
Merge pull request #1668 from bcrowe/hotfix-bootstrapdocblock

Updated doc block readability in bootstrap.php
Use instanceof instead of is_a() in Controller.php
Merge pull request #1669 from bcrowe/hotfix-instancecheck

Use instanceof instead of is_a() in Controller.php
is_a() to instance of - completes PR 1669
Merge pull request #1672 from dereuromark/master-instance

is_a() to instance of - completes PR 1669
Replaced all is_a() calls with instanceof operator
Replaced true asserations with instanceOf asserations in test cases
Missed a couple instanceOf asserations
Merge pull request #1673 from bcrowe/hotfix-instanceof

Replaced all is_a() calls with instanceof operator
Resolves ticket #4100
Wrong signature.
Merge pull request #1674 from dereuromark/master-disabled-radio

Resolves ticket #4100
Merge pull request #1675 from bar/patch-1

Wrong signature.
App::import to App::uses
Merge pull request #1677 from dereuromark/master-cleanup

App::import to App::uses
Merge pull request #1655 from dereuromark/2.5-inlist-clean

2.5 inList(), multiple() and case sensitivity