refactor builder layout

refactor builder layout to have same theme/layout as Core/More,
depending on which builder is being navigated.
make guides layout same in Core and More
add empty line
Merge pull request #103 from SergioCrisostomo/use-same-layout-for-builder

refactor builder layout
Merge pull request #105 from SergioCrisostomo/guides-style-fix

make guides layout same in Core and More
add better snippet to More's overview

add Table constructor example to More's overview
replace "average" by "JSONP"