Must double quote the schema name in query

Schema names with reserved words such as "create" will fail this query without double quotes. 

Attempted prepared statement with ? placeholder. This failed with the following CakePHP error:

Error: A Database connection using "Postgres" was missing or unable to connect.	
The database server returned this error: SQLSTATE[42601]: Syntax error: 7 ERROR: syntax error at or near "$1" LINE 1: SET search_path TO $1 ^
Merge pull request #2571 from cuppett/patch-1

Must double quote the schema name in query
Merge branch 'master' into 2.5

Conflicts:
	lib/Cake/VERSION.txt
changed FormHelper::secure() and FormHelper::end() to support attributes in the hidden CSRF-protection tags that are being generated for SecurityComponent to allow specification of additional html attributes like HTML5s "form" attribute. This allows separation of Form instantiation/controls and form data - for instance within html tables

improved tests for testing against additional attributes for Form::secure()

improved tests for testing against additional attributes for Form::end()

removed array cast, fixed test

fixed docblock format

format