del the context after its call in addHydrogens
Merge pull request #114 from rmcgibbo/modeller-context

del the context after its use in addHydrogens
make testInstallation py2/3
2to3 fixes for argon-chemical-potential
force integer division
Fixed a compilation error on some OSes
cpuid() works correctly on both 32 and 64 bit OSes
Merge pull request #115 from rmcgibbo/py3

Small py3k fixes
Some example files were not being installed
Merge pull request #116 from peastman/master

Bug fixes