add the cython cpp files so cython need not be run in compilation
remove some gcc specific optimization flags from setup.py
change namespace of LBFGS to pele
add c++ optimizer base class interface

LBFGS now derives from the class interface GradientOptimizer which
derives from base class interface Optimizer
forgot to add morse cpp potential to setup.py
add some comments and documentation
remove pydev .project from repository
clean up th c++ lbfgs.h a bit
add some comments
Fixed group_rotation_file function to add 1 to each index (since Fortran
counts from 1, not 0).
fix indenting
Merge branch 'master' of github.com:pele-python/pele
fixed compile tie bug in Array::view

might have been visual studio specific
Merge branch 'master' of https://github.com/pele-python/pele.git
change name interaction list to neighbor list

also, add a test for LJNeighborList potential
atom indices are now passed to the interaction objects

_interaction->energy(r2, atomi, atomj)
_interaction->energy_gradient(r2, *gij, atomi, atomj)