FIX: Reorganize modules
FIX: Cleanup
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
STY: Add comments
Merge pull request #449 from Eric89GXL/reorganize

FIX: Reorganize modules
Merge pull request #453 from Eric89GXL/imshow

ENH: Imshow demos
Text uses a global FontManager
Text vertical aligment also include h and y for reference

If we don't do this, vertical alignment only depends on the
characters that happen to be in the string, leading to
inconsistent vertical alignment, and subsequently to jumpy
spacing between pieces of text that should be equally-spaced.
Text allows global manager, but not by default.
Merge pull request #455 from almarklein/text-share-manager

Text uses a global FontManager