Download bigtable-client JAR file with all dependencies

This is a client to access Cloud Bigtable (https://cloud.google.com/bigtable/) via the HBase APIs. There are a handful of modules in this project. The bigtable-hbase-x.x projects are intendned to be the projects which users interact with. The x.x versions in the bigtable-hbase-x.x projects represent the hbase major and minor versions which the project supports. For example, bigtable-hbase-1.0 will integrate with all hbase 1.0.x releases and bigtable-hbase-1.1 will integrate with all hbase 1.1.* releases. The bigtable-protos, bigtable-client-core and bigtable-hbase modules are meant to be used as components of bigtable-hbase-x.x. Those submodules may be usedful outside of the bigtable-hbase-x.x projects, but have not been thoroughly tested in other scenarios.