A survey conducted in early 2019 by the working group (WG) Long Term Support (LTS) showed that a significant subset of Kubernetes end-users fail to upgrade within the previous 9-month support period. 
A yearly support period provides the cushion end-users appear to desire, and is more in harmony with familiar annual planning cycles.

## Known Issues

*   Android demo: Makefile build functionality added to build.gradle to fully
    support building TensorFlow demo in Android on Windows.
*   Android demo: read MultiBox priors from txt file rather than protobuf.
*   Added colocation constraints to `StagingArea`.
*   `sparse_matmul_op` reenabled for Android builds.
*   Restrict weights rank to be the same as the broadcast target, to avoid