This reverts commit a7180caf.

This reverts commit 783971e8.
Revert an accidental revert!

This reverts commit 6d96493b.

This reverts commit c40018e5.

Make sure to include zlib.BUILD in our distribution

* Custom mktime to fix issue on mac

* Remove succeeded tests from failure list

Fix update_version script to use the appropriate rc style for C#

Update change log for 3.8.0

Remove unused files from lite's pom.xml

Update version to 3.8.0

Down integrate to GitHub

Down Integration to GitHub

All bazel crosstools automatically pass -Wall to compiles. The order of
operations is:

- bazel crosstool flags
- `--host_copt` flags and other variations like `--host_cxxopt`
- the `copts` defined on the rule

Because of this when protobuf produces warnings, there's no way to
disable them from the consumer side if they are re-enabled later by
another `-Wall` flag.

These were found attempting to enable -Werror

GCC 8 added a -Wclass-memaccess that is enabled in -Wall that warns when
making direct memory modifications to non-trivial objects. The objects
that are modified here are only "non-trivial" in non-interesting ways
(e.g., removal of copy constructor) and can be safely modified as is
being done.

This simply explicitly casts the pointers before calling memset to
indicate that they should be treated as raw memory.

Down integrate to GitHub

Remove Required.Proto3.JsonInput.EmptyFieldMask.JsonOutput from failure list since it is now passing for Ruby

Replace SimpleItoa with StrCat in ObjectiveC compiler codes

https://groups.google.com/d/msg/protobuf/H8_D1hfg3p4/A2oPHdfUAgAJ