Bump Cassandra test version to 2.1.0.
Fix UDT fields of type inet in QueryBuilder (JAVA-454).
Use codecs to format non-trivial literals in QueryBuilder.
Fix inet codec parsing and unit tests (JAVA-454).
Exclude transient fields from Frozen checks (JAVA-455).
Fix handling of null collections in mapper (JAVA-453).
Make implicit column names case-insensitive in mapper (JAVA-452).
Fix named bind markers in QueryBuidler (JAVA-433).
JAVA-458
Add basic test for primitive types mapping (JAVA-458).
Merge branch 'bsideup-JAVA-458' into 2.1
Refactor mapper tests into smaller classes.