Merge pull request tensorflow#31861 from tensorflow-jenkins/relnotes-…

…1.15.0rc0-16184

Update release notes for TensorFlow 1.15.0

Add Sergii Khomenko to contributor list

tensorflow@dd551ab
tensorflow@cb93088

Merge pull request tensorflow#26101 from gunan/r1.13

Bump TF version to 1.13.1

Fix a bug in tpu.py and xla.py that while creating an identity node f…

…or control input edges under rewrite context, the parent control flow context is lost. (tensorflow#23446)

PiperOrigin-RevId: 219724472

Final version strings for 1.11.0 (tensorflow#22513)

Merge pull request tensorflow#21425 from saeta/fix_tpu

Refactor dependencies so keras_support can be imported directly.

Merge pull request tensorflow#20455 from lygztq/r1.9

fix bug in maxout function

Merge pull request tensorflow#18928 from tensorflow/release-patch-4-1

Disable python/kernel_tests/sparse_reshape_op_test.py on cmake.