Fixes https://github.com/google/protobuf/issues/1933

Add a new test that forces strings into two different implementations from the
NSString class cluster to help confirm we're exercising both paths by which
CodedOutputStream will extract data from an NSString.

Move the old +load test (that was flawed because the behavior really depends on
the type of string from the NSString class cluster); into a unittest that
targets the specific case we're adding a behavior confirmation on.

As a bonus, improve the TextFormat generation of string characters < 0x20.

Convert mapping of proto comments to appledoc format so they show up in Xcode and cocoadocs.

Fixes https://github.com/google/protobuf/issues/1866

fixed cmake config files install path

Work for #1866 

Migrates all the public class docs over to appledoc format.  While Xcode is fine with blank lines in `///` comments, appledoc (used by cocoadocs) isn't and was leaving a bunch of info off the doc pages.

The generator still needs to be updated to do this also; that will be a follow up CL.

close opened file descriptors properly

Bazel: export LICENSE file.

[master] Add dependency cl. Fixes google/protobuf#295.

Signed-off-by: Piotr Sikora <piotrsikora@google.com>

Adding missing generic gcc 64-bit atomicops.

Adds watch os deployment target for protobuf

CMake: Improvements and Bugfixes

Typo: beffer -> buffer

Ruby: added API support for well-known types.

Use 64-bit protoc binaries in compatibility tests.

Turns out travis doesn't have the library dependencies to run a 32-bit
binary.

Change-Id: I5fadbcade2eb71c1e9ce21d90fa9459797df0e81

CMake: remove repeated_field_reflection.h from extract list

can reasonably be expected to be interoperable.

(The fact that not all Int64/Uint64 values *can* be exactly represented in
IEEE-754 and thus interoperably amongst JSON implementations is precisely the
reason for wrapping them when we serialize... it shouldn't be a surprise that
we can't round-trip in unwrapped form for all values.)

Fix Issue #1869: faulty js API documentation

Fix valueWriterFn_ variable name

Merge GA branch for makedist fix.

Add python/setup.cfg into dist files

Merge 3.0.0-GA into master

Run Java compatibility tests on Travis.

The test is testing the binary/source compatibility between 3.0.0-beta-4
and the current version (right now it's 3.0.0).

Change-Id: Ic410b535758b38cee7baa99a15a0433734df44e6

add setup.cfg for building wheels

Be consistent with the use of CHECK()/ GOOGLE_CHECK().

Fix the build-zip.sh to add .exe for win packages.