Update .travis.yml

add hdf5 library requirement
Update .travis.yml
adding interface to experiments to check and describe parameters
Merge branch 'c++_refactor' of github.com:QSTEM/QSTEM into c++_refactor
Update .travis.yml
hide qh5 files.  Some version conflict on Travis that needs resolution.
Merge branch 'c++_refactor' of github.com:QSTEM/QSTEM into c++_refactor
hide more qh5 files for Travis' sake
Update .travis.yml
Update .travis.yml