create centralized logger for neo and BaseIO and add logging documentation
Merge pull request #150 from toddrjen/iologging

Default logger and logging documentation for neo
Added __reduce__ method to IrregularlySampledSignal to allow it to be
pickled properly
added eclipse settings files to gitignore
added unit test for pickle dump/load of IrregularlySampledSignals
Merge pull request #156 from tclose/pickle_irregularly_sampled

Added __reduce__ method to IrregularlySampledSignal