ADD preliminary reader

support for elp channel location from digitization
ADD: testing suite
FIX: make Travis happy

Forgot that .gitignore ignores *.fif.
ENH: added support for different data orientations and binary formats
FIX: handles filtering settings
ENH: check whether marker file contains events
ADD brainvision test data to manifest
FIX: header parsing
COSMITS: add docstring,
COSMITS: Renaming
FIX: Minor error
ADD: elp file to improve coverage FIX eeg_loc

PEP8
update what's new