Fixed 'find Columns' do 'CFirebirdSchema' that always returns true, even if the table does not exist;
Added support for 'date', 'time', 'timestamp' and 'text' in 'extractType' in 'CFirebirdColumnSchema';
Removed BLOB types used only by firebird.
Merge pull request #12 from edgardmessias/migration

Fixed 'find Columns' do 'CFirebirdSchema' that always returns true, even...
Merge pull request #13 from edgardmessias/data_type

Added support for 'date', 'time', 'timestamp' and 'text' in 'extractType...
Merge pull request #14 from edgardmessias/master

Added support for transaction;