Added GetTotalPage in Paging
Paging 'getTotalPage()' tests
Added more 'has()' tests
* Has is now using "SELECT 1" instead of count() for more speed.
* Initial foreignKey support added
Added IConfig.setForeignKeySupport()
ForeignKey successfull Test! more tests needed
Updated javadoc
* Major code refactoring + performance improvement
* GroupBy + Having() initial support
* Another major code refactoring inside package sqlite
Code refactoring
bindArgs tests
* groupBy + having fixes
* paging when join fixes