Bump to 2.1.0.0

Tagged 2.0.0.17.

Bump Java pom to 2.0.0.16 for release

Merge pull request basho#94 from basho/bugfix/sdc/dialyzer-xref

Fix dialyzer and xref warnings

update erlang_protobuff to 0.8.1p4 for otp 17.0

Fixed sonatype url

sonatype has switched to https for staging

Merge pull request basho#87 from basho/feature/sdc/tools.mk

Convert Erlang build steps to tools.mk.

Merge pull request basho#80 from basho/feature/er/yz-nval

Add n_val to Yokozuna Index

Bump version for new features.

Pom to 2.0.0.11, remove github upload

moved pom to 2.0.0.11 to cut a release to maven central.
Also removed the github files upload from the makefile
as github killed that feature.