GitLab

Adds threading support (by Miklos Fazekas, Vlad Losev, and Chandler Carruth); adds wide InitGoogleTest to gtest.def (by Vlad Losev); updates the version number (by Zhanyong Wan); updates the release notes for 1.5.0 (by Vlad Losev); removes scons scripts from the distribution (by Zhanyong Wan); adds the cmake build script to the distribution (by Zhanyong Wan); adds fused source files to the distribution (by Vlad Losev and Chandler Carruth).

Improves the scons scripts and run_tests.py (by Vlad Losev); uses typed tests in gtest-port_test.cc only when typed tests are available (by Zhanyong Wan); makes gtest-param-util-generated.h conform to the C++ standard (by Zhanyong Wan).

Fixes: Scons build file broken when used in another SConstruct; warning in VC 8.0 when compiled with /Wp64

Fixes a typo in __GNUC__ (by Zhanyong Wan).

Renames EventListenrs to TestEventListeners (by Zhanyong Wan).
Fixes invalid characters in XML report (by Vlad Losev).
Refacotrs SConscript (by Vlad Losev).

Adds a Random class to support --gtest_shuffle (by Josh Kelley); Makes the scons script build in a deterministic order (by Zhanyong Wan).

assignment operator cannot be generated) enabled.