Fixed for latest Nette
[mapper] Added getManyHasManyParameters() method
[mapper] refactored CollectionMappers
[mapper] implemented getIteratorCount() for OneHasMany
[tests] fixed for Collection api
[entity] annotationParser: fixed detection of primary mapper
[mapper] optimized fecthing new entities
[collections] refactored interfaces, implemented auto grouping
[mapper] added check for passing sql into findBy() methods
[mapper] fixed SqlBuilderCollectionMapper