subsystem: geometries

A faster way to sort an array of two numbers has been implemented
replacing Array#sort.

A single string concatenation of an array with two elements is orders of
magnitude faster than Array#toString.

subsystem: utils

Fixed regression in IE 11 and Microsoft Edge browsers. It was caused due
to a poor optimization in Microsoft browsers while accessing
Array#length attribute in a for condition.

This reverts commit eeae90e1.

subsystem: utils

It's generally faster to iterate arrays in forward direction by allowing
the Javascript runtimes to perform better optimizations.

Unit tests were also included.