added mdcrd. currently only read is implemented (and no tests)
add error handling
added mdcrd writer, first test
add mdcrd to trajectory.py
added test for  trajectory.py code with mdcrd
updated docs
remove pending deprication warnings
Merge pull request #124 from rmcgibbo/tablesdeprication

avoid tables3.0 pending deprication warnings
starting
Add from_openmm and to_openmm functions, addressing issue #105
work in progress
add to/from dataframe, and some convenient methods to get specific atoms/residues/chains
some documentation
add doctest skip instructions
docs
added reporter example that was TODO in code
Merge pull request #126 from rmcgibbo/example

added reporter example that was TODO in code
Merge pull request #123 from rmcgibbo/mdcrd

mdcrd files
Some typo fixes and minor changes to the text of the hdf5 trajectory format standard
move openmm import inside of function. this avoid some issues with error handling on cray