Fix AutoMigrate with nested Scanner
Use fmt.Errorf
Merge pull request #183 from bruston/errorf

Use fmt.Errorf
Specify database dialect when open database, fixes #169
I am not using Guard for testing now
Add DropTableIfExists.
add document about DropTableIfExists.
Merge pull request #184 from shirou/master

Add DropTableIfExists
Don't check relations if field is ignored
Fix invalid reflect value
Don't raise error when get TableName even Scope has no db
AutoMigrate accepts structs
By default, pluralize table name
Add Set, Get method for DB
Add InstanceSet, InstanceGet fomr Scope
gorm: added ability to change the time.now format
Refact First, Last to make it possible to reset table name in Plugin
Add InstantSet for DB
Fix register callbacks in some cases
Merge pull request #206 from cihangir/master

gorm: added ability to change the time.now format