Merge pull request #10 from go-xorm/master

bug fixed
bug fixed
Merge branch 'master' of github.com:go-xorm/xorm

Conflicts:
	engine.go
	session.go
bug fixed
bug fixed for mssql dialect
small improvement
Merge pull request #11 from go-xorm/master

update
update

Signed-off-by: 商讯在线 <swhbox@foxmail.com>
Merge pull request #109 from admpub/master

update