Add inline SVG detection to Cutting the Mustard

Add inline SVG detection to the “is it enhanced?” browser test.

This way you can inline an SVG logo and use .base-only to show the
fallback if needed. Could speed up perceived load times on the first
load.

This also (conveniently) removes iOS 4.X and Android 2.X from the “cuts
the mustard” pile. Those relatively ancient mobile browsers will
receive the base experience now.

+ also removing console.log calls from various modules.
+ modernizr add SVG and inlinesvg feature detection

related to issue #15