Fixed googletest dir issue for building googlemock.

Fix whitespace in paragraph

Read Bazel's $XML_OUTPUT_FILE environment variable

Fix typo (Inovke -> Invoke)

Fixed typo ('XCode' -> 'Xcode')

If $XML_OUTPUT_FILE is set, and $GTEST_OUTPUT and --gtest_output are not
specified, produce output as if GTEST_OUTPUT=xml:$XML_OUTPUT_FILE had
been set.

Fix formatting in AdvancedGuide.md

Put occurrences of "#include" in a code span so they are not interpreted
as headers.

Other documents were not broken because the #include was not at the
start of the line, but put them in code spans anyway just in case the
text gets refilled in the future.

Change error message of EXPECT_EQ to treat lhs and rhs equivalently.

Fix link that's returned when running tests. #714

Add build artifacts to git ignore.

Python 3 support

Add tmux and tmux-256color to the colored terminal list.

Add link to Google Test Primer docs in README.md

On google code, the main documentation pages were the "Google Test Primer" content. Currently it's hard to find that content on github, so add a direct link in the main README.md.

Update GTEST_PROJECT_URL_ in internal/gtest-port.h

As repository moved to github. All urls need to be changed. There is
still plenty to do.

Implement GetThreadCount for AIX.

Add include dirs to targets if CMake version supports it

Added missing CMake install rules for GMock

fixed link in googlemock documentation

Fix lots of broken links in documentation