Seperated installations for wercker
Added cmake search
Added update step to wercker
Removed cmake search step
Merge pull request #1 from Omegaice/wercker

Wercker CI
Added previous integrator potential energy for metropolis, double metropolisPE to EigenvectorInfo.
Added get metropolisPE into pointer to NormalModeUtilities.
Added put current PE into pointer to metropolisPE to NormalModeLL.
Added new metropolis boolean to NormalModeMinimizer, passed to minimizer in NormalModeUtilities.
Update NormalModeUtilities to use metropolis to end minimizer.
Added execution of tests to wercker
Added pure metropolis minimizer using metropolisnoise factor to add noise per step.y
Merge branch 'master' of https://github.com/LCLS/ProtoMol
Fixed NormalModeMinimizer.cpp to add the clear of energies prior to calculating forces/energies. Wierd quirk in protomol that accumulates the energies.
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