Fix python interpreter and library version detection
Enable ccache and caching the output of it on travis
Switch to anaconda when building python3.3
remove caching in travis as it is only available for private repositories
travis: add fast_finish option and fix anaconda path
travis: upgrade miniconda version and activate conda environment
travis specify PYTHON_LIBRARY for cmake when using miniconda
travis: set CMAKE_PREFIX_PATH to miniconda virtualenv path
Travis: use CUSTOM_PKG env for installing custom packages
Travis: eval CUSTOM_PKG and refactor a bit the config
Travis: more refactoring
and yet another try to fix CUSTOM_PKG for python3.3
Fixing potential colliding output files "out.txt" when runnning ctest -j4
Merge pull request #2211 from tklein23/conflicting_output_file_names

Fixing potential colliding output files "out.txt" when runnning ctest -j4
Travis fix allowed failure jobs
rename LogitPiecewiseBoundLikelihood class
Merge branch 'feature/PythonDetection' into develop
Merge pull request #2210 from khalednasr/develop

added more unit tests for neuralnets
Merge pull request #2214 from yorkerlin/rename_PiecewiseBoundLikelihood

rename LogitPiecewiseBoundLikelihood class
update the integration class
SGRefObjects not allowed to share RefCount object any more.
Fixed unit test; moved threaded stress_test fo RefCount_unittest.
Parallel and SGIO should not copy ref-count values with copy-constructor;
rather maintain ref-counts on their own.