Adding the regex operators for PostgreSQL
Fixing the indentation problem
Improve concaternation
fix relationsToArray

The relationsToArray needs to unset it's relation value at the end of
every loop.
Fix broken support for PDO::FETCH_ASSOC in Schema::hasColumn()
Merge pull request #6184 from JeroenDeDauw/sqlitegrammar

[5.0] Improve Concaternation
remove spaces.
Fix conflicts.
Merge pull request #6199 from Flightfreak/4.2

[4.2] Fixed "relationsToArray"
Merge pull request #5856 from vsmoraes/master

[5.0] Adding The Regex Operators For PostgreSQL
Merge branch '4.2'