misc viz fixes
more cmap fixes including mayavi
fix the last one of them
FIX empty caption issue
Merge pull request #1481 from dengemann/misc_viz_fixes

FIX: misc viz fixes
FIX: Fix for corner case
Merge pull request #1487 from Eric89GXL/psd-fix

FIX: Fix for corner case
ENH: Quieter Travis
FIX DOC:  *.annot I/O in reference
Merge pull request #1489 from christianbrodbeck/doc

FIX DOC:  *.annot I/O in reference
DOC fixes for realtime and decoding module
Merge pull request #1484 from mainakjas/report_empty_caption

FIX empty caption issue
Merge pull request #1488 from Eric89GXL/quieter-travis

ENH: Quieter Travis
Merge pull request #1485 from mainakjas/misc_realtime_decoding_fixes

misc fixes in realtime and decoding module