GitLab

Hard-code CC and CXX to clang for Macs, since gcc/g++ will *not* work with
Anaconda, despite the fact that distutils will try to use them.  System Python,
homebrew, and MacPorts on Macs will always use clang, so this hack should always
work and fix issues with users that have GCC installed from MacPorts or homebrew
*and* Anaconda.

Clean up

Fix OpenCL platform on low-end devices

Close file before deleting in TestAmberPrmtopFile.py

Close PDBx file before deleting to fix windows test failure in TestPDbxFile.py

Fix test checkpoint reporter close file before repoening

Add bytes typemap

Update appveyor.yml

Fix exit status

Supress 4305 and 4244 warnings

Print the last failed tests output

Make numpy optional in test

Improve scipy skip too

Refactor TestCheckpointReporter.py to not require numpy

test on the proper file

Remove annoying -V

(part of the long-term plan of supporting Python 2 and 3 in the same code base
without 2to3)

to precision)