introduce BinaryType
add binary type tests for DB2
Merge pull request #452 from deeky666/introduce-binary-type

Introduce BinaryType
[DBAL-139] Fix sequence cache assumptions.
Remove instance of array_push()
add more documentation about vendors and platforms
Merge pull request #460 from deeky666/DBAL-593

[DBAL-593] Add more documentation about vendors and platforms
fix portability statement parameter binding delegation
add tests to avoid regression
Merge pull request #461 from deeky666/DBAL-726

[DBAL-726] Fix portability statement parameter binding delegation
fix full qualified table name schema introspection
fix table alteration on Drizzle
fix altering column from notnull to null in Oracle
fix dropping table without autoincrement trigger in Oracle
add native JSON type declaration to platform
introduce platform for PostgreSQL 9.2 with native JSON type support
Connection: Replaced ! is_int with is_string

Intended side effect is not to call extractTypeValues when $types array is empty which it is by default.
add servicename connection parameter to Oracle drivers
fix index flags
Merge pull request #472 from deeky666/fix-index-flags

Fix index flags