Create test_meshdata.py
add cone and arrow primitive
Update meshdata.py
Create primitive_mesh_viewer_qt.py
Solve pep8 problems
More pythonic names for variables
add sip initialisation
Added alpha value to set_clear_color
Basic implementation of colormaps
Cleaned up colormap implementation
A little more clean-up
Some more clean-up
More clean-up
Some whitespace changes
Added example
More whitespace changes
Slight change to colormaps in line
Adapt example "examples/high-frequency.py" from glumpy to vispy
Fix copyright and main call in high_frequency example
Merge pull request #502 from rossant/fix-start-shaders

Minor fix in start_shaders example
Merge pull request #504 from maxalbert/master

Fix for #503