ENH: Better text rendering
STY: Comment
FIX: Fix viewport setting
Merge pull request #444 from Eric89GXL/text-rend

ENH: Better text rendering
Ipynb backend checks IPython version

Ubuntu comes with < 2.0, so lots of people will get this
FIX: Reorganize modules
Make ipynb examples use normal timer

and remove the adding of canvas.events.timer by the
ipynb_vnc backend
FIX: Cleanup
flake
Merge pull request #447 from almarklein/ipynb-check-ip-version

Ipynb backend checks IPython version
FIX: Move data files
FIX: Move create_cube
FIX: Reorganize meshdata
Added image/colormap example
Moved imshow.py at the right place
Added low/high values specific colors
Another imshow example with slice cuts
Put back default limits
FIX: Use gloo and fix coord calculation
STY: Slightly cleaner