add spatio-temporal clustering example for sensor data

minor fixes

update tests to deal with preload when dropping channels

cleanup

cleanup2

cleanup viz
add statement
typos
ENH: reorganize template modules consistently

fix setup.py

edit manifest

fix attempt setup.py

more setup + py3k fixes

cleanup, add Fieldtrip credits, update reference and whats new

address suggestions from hangout

remove montages.py
fix setup.py
attempt to fix setup.py
one more attempt to fix setup.py
cosmit
API : make ch_neighbor_connectivity private
fix some import
fix tests + pep8
API : make read_ch_connectivity return ch_names
Merge pull request #1642 from dengemann/spatio_temporal_sensors

ENH: add spatio-temporal clustering example for sensor data