Added warning if GCC is older than 4.7. Fixing detection of GTEST_DIR
environment variable
Correction of some misspelling
Fixes ugly exit when the ephemeris map from SUPL is empty
Finding Gflags and Glog if they are installed with Macports. Fixing
problems finding Gperftools libraries
Gflags and Glog can now be installed via Macports in Mac OS X Mavericks
Updating armadillo version to 4.300.2
updating armadillo patch