Merge pull request #75 from ezhulenev/develop

Hotfix/null_values: Proper handling of null values
Merge branch 'develop' of https://github.com/newzly/phantom into feature/scala_reflection
unify C* collection types operations
Merge pull request #76 from viktortnk/cassandra-collection-types-refactoring

unify C* collection types operations
Adding support for Composite Keys
Merge branch 'develop' into feature/scala_reflection
Simplify fetchEnumerator and enumerate API
Merge pull request #77 from bjankie1/develop

#74 Simplify fetchEnumerator and enumerate API
Adding tests for table methods.
Merge branch 'develop' of https://github.com/newzly/phantom into feature/scala_reflection
Manually fixing all imports.
Linting the entire test modules.
Merge branch 'feature/scala_reflection' of https://github.com/newzly/phantom into feature/scala_reflection
w
Fixing test runner in basic table tests. Finalising support for clustering order.
Moving test tables to the appropiate place.
Simplifying field collection. Removing boilerplate, Scala reflection is better.
Merge remote-tracking branch 'remotes/upstream/feature/scala_reflection' into feature/scala_reflection