Fix form validators in admin application.
fix typo in dal.py
fixed bug introduced with commit: df4d8a523860eaa60547539188faf4fed1d7cf74
fix issue with sys.path. Now the path looks like 'root/gluon', 'root/site-packages', 'root' like in a normal web request
Merge pull request #154 from gokceneraslan/master

Fix form validators in admin application.
Merge pull request #155 from rpedroso/dal-break-typo

fix typo in dal.py
Merge pull request #157 from niphlod/issue/orderby_limitby_groupby

fixed bug introduced with commit "no more removal of ORDERBY in MSSQL"
Merge pull request #158 from niphlod/fix/scheduler_sys_path

fix issue with sys.path.
issue 1612:mongodb adapter does raw blob data, thanks Alan