FIX: Adding viz tests
ENH: Adding test
Merge pull request #397 from Eric89GXL/viz-tests

FIX: Adding viz tests
ENH: Better error for plot_evoked
ENH + FIX: correct logic

correct logic for plot-catch
ENH: initial commit

Adding native support for BTi
ENH: adding raw data reading

need to test this though
ENH: adding constants, refactoring reading functions
FIX: fix constants
COSMITS
ENH: read data debugged
- put stuff in functions instead of classes
ENH: intermediate commit, adding bti config file
ENH: writing config file code
ENH: edits on conversion class
MERGE
Undo rebase error
COSMITS: remove spurious snippets + tiny fixes
FIX: debug read user block
FIX: fix constants and read_userblock
FIX: constants and bti