ENH: Add console visual
ENH: Make widget
ENH: Add more read options
FIX: Minor tweaks
FIX: Fix examples
FIX: Better writing support
FIX: Better scrolling
Fix couple of examples

- post_processing needed to set viewport correctly - #523
- real_time signals needed data of proper shape - #528
- spacy dito

closes #523
closes #528
Merge pull request #527 from Eric89GXL/fix-col

FIX: Fix examples
Merge pull request #531 from almarklein/example-fix

Fix couple of examples
Merge pull request #520 from Eric89GXL/dtypes

ENH: Add more read options
FIX: Allow point sizes
Modified if-statement to reflect what was originally meant
Merge pull request #534 from svisser/patch-1

Modified if-statement to reflect what was originally meant
Merge pull request #518 from Eric89GXL/console

ENH: Add console visual
Defined basic 3D polyhedron
Pared down Cube example
Added some files that were missed
FIX: Minor fixes
Added a bit more to Cube