removed duplicate return in Query Builder
Using PDO::CASE_NATURAL in default database connector
Fix tiny typo

laoded => loaded
change default pdo case option.
Merge pull request #124 from msvrtan/connector-natural

Using PDO::CASE_NATURAL in default database connector
Merge pull request #123 from navruzm/master

removed duplicate return in Query Builder
implemented truncate on query builder for all systems.
Merge remote-tracking branch 'origin/master'