SCHEMA-260. Adds NamedLookup and NamedProvider.

Signed-off-by: Milo <milo@wibidata.com>
Set versions for release.
[maven-release-plugin] prepare release kiji-delegation-1.0.0-rc5
[maven-release-plugin] prepare for next development iteration
Update versions for development.
Add REVIEWERS file.
Set versions for release.
[maven-release-plugin] prepare release kiji-delegation-1.0.0
[maven-release-plugin] prepare for next development iteration
SCHEMA-432. Allow delegation through properties files.

Adds ConfiguredLookup (Lookups.getConfigured()).
Also adds the @AutoLookup and Delegation.init() functions.
POM-9. Upgrade to Avro 1.7.5

issue: https://jira.kiji.org/browse/POM-9
review: https://review.kiji.org/r/1001