FIX: Use None for tmin to take the latest samples available in the buffer
TESTS: Use subprocess to do tests
FIX: Fewer warnings
FIX: Network for realtime test
TESTS: Fix travis by moving neuromag2ft inside decorator
Merge pull request #1425 from Eric89GXL/test-warn

FIX: Fewer warnings
Merge pull request #1422 from mainakjas/ft_measurement_latest

FIX: Latest samples in fieldtrip connector
make return figure if axes is None
return figure
really return figure
ENH: Remove nibabel req for vol src space
FIX: Fix import
STY: Better comments
Merge pull request #1426 from dengemann/fix_plot_events

FIX: make return figure if axes is None
update setup to have clear test output
speed up viz code
more speed up viz code
more speed up viz code + cleanup old test
more speed up viz code
more more speed up viz code