Connect on get resource, for quoteValue
IBM Does not need the resource
Check if connection already is connected, and add unit test for PDO Connection getResource method
Cleaned up docblock
+ fixed naming 
+ added test for pgsql
+ fix pgsql test for empty string
PR #4078
Merge branch 'fix-db-resource' of git://github.com/Mech7/zf2 into Mech7-fix-db-resource
PR #4078 Additions
- added preservation of lazy loading to Platform
- added error checking on pg_connect()
PR #4078
Merge branch 'Mech7-fix-db-resource'