Added property oxalis.jdbc.dialect to GlobalConfiguration
Made RawStatisticsRepositoryJdbcImpl and abstract class
Created RawStatisticsRepositoryMySqlImpl which inherits RawStatisticsRepositoryFactoryJdbcImpl and implements the MySql specific queries earlier found in SQLComposer
Removed SQLComposer
Changed RawStatisticsRepositoryFactory to return an instance of RawStatisticsRepositoryMySqlImpl instead of RawStatisticsRepositoryFactoryJdbcImpl
Merged test code for StatisticsRepositoryJdbcImplMockTest and SQLComposerTest into StatisticsRepositoryMySqlTest
Changed StatisticsRepository*ImplMockTest to test the MySql implementation
Added RawStatisticsRepositoryMsSqlImpl
Changed RawStatisticsRepositoryFactoryJdbcImpl to return repository instance based on the oxalis.jdbc.dialect property
Finished needed changes for implementing both MySql and MsSql support in StatisticsRepositoryJdbc
Merge pull request #194 from zeko78/master

Support for MsSQL dialect in RawStatisticsRepository implementation