Missing these caused failures on platforms depending on them as well as general
failures of the dedicated tests for the tuple implementation.
Change was tested by running 'make distcheck' and then extracting the result to
an entirely separate location (a subdirectory is insufficient, thank you
Autotools) and running './configure; make check'.
- appends "_" to internal macro names (by Markus Heule).
- makes Google Test work with newer versions of tools on Symbian and Windows CE (by Mika Raento).
- adds the (ASSERT|EXPECT)_NO_FATAL_FAILURE macros (by Markus Heule).
- changes EXPECT_(NON|)FATAL_FAILURE to catch failures in the current thread only (by Markus Heule).
- adds the EXPECT_(NON|)FATAL_FAILURE_ON_ALL_THREADS macros (by Markus Heule).
- adds GTEST_HAS_PTHREAD and GTEST_IS_THREADSAFE to indicate the availability of <pthread.h> and Google Test's thread-safety (by Zhanyong Wan).
- adds scons/SConscript for building with scons (by Joi Sigurdsson).
- adds src/gtest-all.cc for building Google Test from a single file (by Markus Heule).
- updates the xcode project to include new tests (by Preston Jackson).
