Added Query class for chain sql queries
Added support to custom scopes
Added support to multiple wheres in a query
initial scope structure, going to merge with the query builder
added calls to scopes within Model
Merged with the Query builder, added ability to create scopes similar to Yii and Rails named scopes
added ability to call named scopes statically
Bug fixes for finders
Added documentation all around the usage of named parameters, Fixed bugs related to delagating to finder methods, Added more tests to test more extravagant cases
Merge branch 'scopes'