Begin Trajectory refactoring
Finish C++ Trajectory refactor
Update Python wrapper for refactored Trajectory
Add documentation to Trajectories
Update README
Remove Frame files that have been migrated to trajectories
Add C++ setters to Trajectory and export to Python
+ Needs vector wrappers to be useful at Python interfaces
+ Fix periodic wrap bug in DensityProfile
Merge pull request #1 from mphoward/master

update jvella local fork