remove Epoch class and rename EpochArray to Epoch
remove Event class and rename EventArray to Event
remove Spike class
Merge pull request #165 from toddrjen/arrayonly

Remove Epoch, Event, and Spike objects
make brainwaresrcio work with the latest API change
enable IO classes that are already compatible with the latest API change
Merge pull request #169 from toddrjen/apibreak

Fixes for brainware IO and enable working modules.
NeoHDF5IO compatible with removed Spike, EventArray, EpochArray
Merge pull request #170 from rproepp/apibreak

NeoHDF5IO compatible with removed Spike, EventArray, EpochArray