Changed the way Tables are constructed
Tables now use three arrays (head, foot, body) to construct their
children.  Older style syntax (using children) is still supported, but
will be phased out soon.
Removed Nav's override of List's default childPrefix/Suffix, this allows
for custom prefixes/suffixes to be used with Navs
Bumped version to 0.6.2
Compiled assets
Fixed Icon types
Made the backwards compatability on Tables better
Added type checks to new child arrays
Modified Source constructor to make passed strings function as templates
Bumped Version to 0.7.0
Reformatted some comments
Ignored unused modules
Fixed an issue with legacy tables
Changed the way checkIfRenderable works
It now returns the renderable.  This fixes an issue with cloning tables.