AVRO-1260. Ruby: Improve read performance.  Contributed by Martin Kleppmann.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1451689 13f79535-47bb-0310-9956-ffa450edef68
AVRO-1267. Java: Permit dashes in IDL property names.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1452526 13f79535-47bb-0310-9956-ffa450edef68
AVRO-1272. Ruby: Improve schema namespace handling.  Contributed by Martin Kleppmann.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1458349 13f79535-47bb-0310-9956-ffa450edef68
AVRO-1268. Java: Extend support for stringables from reflect to specific.  Contributed by Alexandre Normand and cutting.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1461856 13f79535-47bb-0310-9956-ffa450edef68
AVRO-1259. Java: Improve Trevni's encoding of sparse columns.

git-svn-id: https://svn.apache.org/repos/asf/avro/trunk@1461896 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into trunk
Merge branch 'trunk' of https://github.com/CurtHagenlocher/avro into trunk