Merge pull request #1209 from dengemann/fix_ica_scaling

BUG: ica scaling with multiple sensors
FIX: node width for irregular node spacing
typo
Merge pull request #1212 from mluessi/fix_node_width

FIX: node width for irregular node spacing
DOC : None in raw.save
WIP/ENH: add EGI simple binary IO: header + events parsing