Added interpolation and wrapping keyword arguments to texture creation.
Updated texture docstring.
Updated examples with new keyword arguments for texture.
Updated example.
Merge pull request #541 from rossant/add-texture-init-arguments

Added interpolation and wrapping keyword arguments to texture creation
ENH: Test examples
FIX: Fix test for backend
FIX: Simplify by not using \b for Travis
FIX: Fix example
FIX: Better distribution of tags
FIX: Fix tag
FIX: Fix broken npz files
FIX: Enable ignoring errors
WIP
FIX: Fix multiple examples
FIX: Fix skip
FIX: Better msg
FIX: Fixes for py2.6
FIX: Minor fixes
FIX: Minor fixes