switched to IMP::base::random random number generator
add forward declarations
rebase by default on pull
and then I do it on my test :-)
minor issue
merge
Use os.system() to run shell stuff.
Register restraint with the model.
Update for new Restraint/ScoreState interface.
Remove deprecated code.

The compatibility classes were erroneously being used as the base
classes for *all* Restraint and ScoreState objects in Python. This
was causing the methods in the wrong base class to be called.
Make sure we set the model.
add robustness to stochastic test
Merge branch 'develop' of https://github.com/salilab/imp into develop
Add missing headers.
More missing headers.
Don't export header-only class; fix multiple definition of do_show().
Pass examples through unchanged; closes #298.
Update to new Restraint interface.
Store real Particle objects.
add repeats to euler test that occasionally fails to surface problems