Introduced an option `math.options.matrix.default` which can have values `matrix` (default) or `array`. This option is used by the functions `eye`, `ones`, `range`, and `zeros`, to determine the type of matrix output.
Fixed small typo in exception message
Updated history
Merge pull request #97 from guillermobox/master

Fixed small typo in exception message
Merge branch 'master' into develop