0.5.0 Release Candidate 1

WARNING: THIS IS A RELEASE CANDIDATE AND IS NOT INTENDED FOR DOWNSTREAM USE.

This source is a candidate for release version. Please see issue #456 for testing instructions and where to leave your feedback.

Compared to the previous release (0.4.0), this candidate contains:

• #436: Fix classpath handling for running from source against BasicDB.
• #442: User-specified percentile output.
• #444: Kudu binding.
• #450: Rename some README files to README.md, so individual bindings .tar.gzs can be generated.
• #452: .gitignore for Intellij.
• #454: cassandra2-cql binding, with support for Cassandra 2.1+
• #461 Add a new output format: RAW, which reports individual operation latencies.
• #468 Add LIMIT to JDBC scan operation.
• #469 Add a single definition of status codes.
• #470 Fix building distribution with large GIDs.
• Miscellaneous checkstyle updates (#464, #466, #467)
• #473 Update JDBC field names to match other bindings.

Of particular note:

• ❗ #469 changes the output status report from integer status codes to short descriptions (0 -> OK, etc).
• ❗ The cassandra CQL clients do not use prepared statements (#458).
• ❗ #468 changes the semantics of JDBC scan operations.