Add missing pkpass mimetype
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 #2570 from dereuromark/master-pkpass

Add missing pkpass mimetype
Remove ext-mbstring dependency.

mbstring is not a hard dependency for 2.x. The Multibyte class can shim
up the missing extension.

Refs #2564
Update some grammar in Controller
Merge pull request #2572 from bcrowe/hotfix-controllerBlocks

Update some grammar in Controller
Merge pull request #2571 from cuppett/patch-1

Must double quote the schema name in query