STY coreg:  use fname patterns
STY coreg_gui:  move reset into model
FIX RawSource (coreg_gui):  reset omitted points when raw file changes
TEST coreg_gui:  switching raw with point omission
DOC
Doc: note on working with downsampled raw files
e -> events in docstring
Added >>> before code example
Merge pull request #938 from christianmbrodbeck/fix-gui

FIX coreg gui
ln -sf
ENH: contributing
FIX: contributing
FIX2: contributing
FIX Epochs:  raise error if baseline is outside data
FIX
FIX : avoid division by zero warning + integer division
Replacing deprecated commands module
Replacing deprecated commands module, v2
Making changes more pythonic.
Merge pull request #951 from pravsripad/replace_commands_module

Replace deprecated commands module. [Python 3 support]