v0.8

Features:

• Improvements to 3D Plotting, see #238
• Enable MathJax menu, see #236

Improvements to documentation:

• Thanks @bnjones!

Updated dependencies:

• upgrade to SymPy 0.7.6
• upgrade to ply3.6 (new parsetab format, see #246)
• upgrade to mpmath 0.19

Bug fixes:

• IntegerDigits[0]