Fixed missing math namespace in ArrayNode
Added function `format` to Selector
Removed function format from Selector again (conflict)
Math.js must be instantiated now, static calls are no longer supported
Released version 0.15.0
Updated version to 0.15.1-SNAPSHOT
Changed precision of cli to 5 digits
Updated getting started example code
Removed utility functions `isScalar`, `toScalar`, `isVector`, `toVector` from `Matrix` and `Range`.
Simplified/improved typeof function
Fixed indentation
Extended documentation on matrices
Functions `ones` and `zeros` now return an empty matrix instead of a number 1 or 0 when no arguments are provided
Some fixes and improvements in the `resize` function
 Function `size` now adheres to the option `matrix.defaultType` for scalar input
Implemented functions `min` and `max` for `Range` and `Index`
Simplified and reworked the `Matrix` class. Implemented functions `Matrix.get` and `Matrix.set`
Bug fix for nested matrix indexes using context variable `end`
Range operator has a higher precedence now
Documented the expression parser