Bug fix area node

This makes the formatting of the output consistent with Range and
Series and it then works with VectorInNode for example. Also not so
sure about numerical precision, is there any reason to round that much,
or at all?
Extended math node and Vector Math node

Can handle 0,1,2 input.
Provides access to pi, e. A series of math function.

Vector math node reconfigures itself based on with different output and
input sockets.
Merge pull request #1 from nortikin/master

util update
Math node update

Updated math node to fullList
Vectornode

Vector node with fullList
Math node

Fulllist and modulo
Merge pull request #12 from ly29/master

VectorMathNode, ScalarMathNode, Areanode bugfix