Added stats and summary functions for trace
calc_interval now throws ValueError when there are insufficient elements.
Bugfixes to stats calculation
Created utilities.py to keep utility functions
Added autocorrelation and autocovariance functions to utilities.
Refactored summary to eliminate stats call
travis change
separate examples / other tests
fix?
removing unnecessary dependencies
guess just python-scipy doesn't work; does just pip install scipy?
readd swig
add back scipy dependencies
Added stats and summary functions for trace
calc_interval now throws ValueError when there are insufficient elements.
Bugfixes to stats calculation
Created utilities.py to keep utility functions
Added autocorrelation and autocovariance functions to utilities.
Refactored summary to eliminate stats call
Generalizing stats functions; starting to add tests