* move supportedDriverOptions into setDriverOptions
 * make setDriverOptions private
 * support \MYSQLI_SERVER_PUBLIC_KEY on 5.5.0+

 * fix typo
 * remove fluent interface

 * introduced $_supportedDriverOptions to validate what is passed into the object
 * added `setDrivrOptions()` which sets the array and throws exceptions

- Fixed docblocks
- Removed return statements on void methods
- Cleaned up unused private / local variables
- Fixed license issues
- Removed SVN leftovers
- Fixed doctrine-project.org links
- Added line breaks before return statements

Hopefully final fixes. Added phpdoc @inheritdoc where it were missing. Added MysqlConnection::getWrappedResourceHandle(). MysqliStatement::fetchAll() now decide fetch style if none is set, instead of letting fetch() do it on every call.