Added flags support for mysqli::real_connect in Mysqli driver. This is necessary if you want to set connection options like compression or SSL encryption.
Mysqli driver flags option: replaced private property to class constant
Add testGivenForeignKeyWithZeroLength_acceptForeignKeyThrowsException
Some much needed cleanup in the TestUtil class
Use spaces
Correcting the doc because mysqli doesn't support named parameter natively
Correct SQLAnywhere driver default port to 2638

References:
SQLA16 - http://dcx.sybase.com/index.html#sa160/en/dbadmin/serverport-network-conparm.html
SQLA12 - http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.help.sqlanywhere.11.0.1/dbadmin_en11/serverport-network-conparm.html
Merge pull request #620 from Slashbunny/fix-sqlanywhere-default-port

Correct SQL Anywhere driver default port to 2638
improved sqlserver 'doModifyLimitQuery' select-from pattern
Prevent Connection from maintaining a second reference to an injected PDO object. Previously, if a developer explicitly closed the Connection, only the _conn reference was destroyed, but the _params['pdo'] reference remained and kept the PDO connection alive. By unsetting the _params reference, we maintain only the _conn reference, exactly as if the PDO connection is generated internally.
Merge pull request #623 from jgallred/remove-extra-pdo-reference

Prevent Connection from maintaining a second reference to an injected PDO object.
Merge pull request #597 from JeroenDeDauw/cleantestsetup

Some much needed cleanup in the TestUtil class
Merge pull request #595 from JeroenDeDauw/testGivenForeignKeyWithZeroLength_acceptForeignKeyThrowsException

Add testGivenForeignKeyWithZeroLength_acceptForeignKeyThrowsException
adapt and move comment to parent class "Statement"
Merge pull request #525 from marcini/master

Added flags support for mysqli::real_connect in Mysqli driver.
adapt and move comment to parent class "Statement"
cleanup copy-pasted comment
lowercase inheritDoc
Merge pull request #624 from rvdbogerd/docfix/mysqli-named-params

[DBAL-918] Correcting the doc because mysqli doesn't support named parameter natively
respect schema when renaming indexes