I'm getting `src/google/protobuf/map_field.cc(284): error C2899: typename cannot be used outside a template declaration`

removing `typename` fixes the issue

This fixes compatibility with bazel when passing `--incompatible_no_support_tools_in_action_inputs` which will be flipped in an upcoming release.

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Update performance.md

Even though I just proofread this file, I noticed one more thing that needed correcting, which I fixed. The word "genereated" had to be corrected to "generated". My apologies for missing this on the initial check.

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Update performance.md

I corrected a few grammatical mistakes and increased the document's readability by easing the language flow.

Update instruction on how to use JavaLite runtime

Fix typo 'pythong'

Typo fix for conformance test runner.

Revert "Convert Google::Protobuf.deep_copy to pure Ruby"

Convert Google::Protobuf.deep_copy to pure Ruby

Changed 'pythong' to 'python'

Make sure to return the updated line when modifying .pb.h file

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In general, I think it will help us to debug issues if we have less C
code and more Ruby code.  This method can be implemented in pure Ruby,
so this commit converts it to pure Ruby.

This reverts commit a7180caf.

This file contains a lot of code that doesn't compile for Xbox One and doesn't appear to be necessary for usage on that platform. _WIN32 is defined for the Xbox One platform.

It appears this file was including winsock2.h just to get the timeval struct definition. There are platforms, such as Xbox One, that don't use winsock but do compile with _MSC_VER set, so just drop in the struct definition we needed instead of including all of winsock. This fixes compilation of this file for Xbox One. Without this change, there were numerous `timeval` complaints such as
```
1>c:\dev\protobuf\src\google\protobuf\util\time_util.h(153): error C4430: missing type specifier - int assumed. Note: C++ does not support default-int (compiling source file C:\dev\protobuf\src\google\protobuf\util\time_util.cc)
1>c:\dev\protobuf\src\google\protobuf\util\time_util.h(153): error C2143: syntax error: missing ',' before '&' (compiling source file C:\dev\protobuf\src\google\protobuf\util\time_util.cc)
```
etc.

Update php/release.sh to be executable and create a new branch

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