added fanofactor and test
added more functionality
corrected typos
Merge pull request #13 from alperyeg/fanofactor

Fanofactor
add basic module docstrings
add a module for general-purpose functions not directly related to neuroscience
refactor neo_tools._get_all_objs and make it public as get_all_objs
add a function to set an attribute in all neo objects
add a function to read everything from any neo container
add a function for tools for working with files not directly related to neuroscience
add functions for working with neo files
general tools
file tools