single frame support in dcd
Added support for frames in openmm_positions and openmm_boxes
Removed openmm_*_all functions
Intermediate checkin of trajectory changes for join() with discard_overlapping_frames
Merge remote-tracking branch 'upstream/master' into single_frame
Added docstrings for discard_overlapping_frames
Load a single frame from an HDF5 trajectory
reworked filenames loading per RMG
Check all filetypes in trajectory.load()
Fixed tests, added more tests of load()
added a test that shows the breakage in issue #21
Moved all [filenames] logic to load() rather than load_x()
a few bugfixes
rollback code that is supposed to be in a different PR
Merge pull request #17 from kyleabeauchamp/single_frame

[WIP] single frame support in dcd
remove test thats from the other PR
added a new version of the test file that has the right topology pickled inside
faster travis
Merge pull request #22 from rmcgibbo/sliceboxshape

Box setter and time setter
load a single hdf5 frame