Initial TravisCI version
Updated TravisCI to install development package for gromacs
Updated TravisCI to execute tests
Merge pull request #3 from Omegaice/travisci

Replace Wercker with TravisCI
Fixed Block Hessian code to cope with residues withour alpha carbon. Just prevents combined atom models working for that residue.
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Fixed BlockHessian mod to ignore missing alpha carbon in residue
Reenabled travisci build emails