clean up optim compatibility a bit
updates to optim compatibility
updates to OpenGL drawing
add a viewer for the rates
add scripts to start the xy model gui
use Kyle's parser to parse the amber prmtop file

Amber system class is can now be used for visualization without openmm
add a script to start the gui in the amber example
fixed *= operator in array
moved lbfgs implementation to cpp file and removed _ from header
Merge branch 'master' of https://github.com/pele-python/pele.git
added missing header in array.h
turn off adaptive step for xy model system without disorder
Merge branch 'master' of github.com:pele-python/pele
Fixed a few broken imports.
merging