Added version 1.1.13
Fixed versions for dependencies based on README.md for package
In particular:
* versions 1.1.x require python@3, at least 3.4 and for 1.1.13 at least 3.6
* py-osqp had been pinned to version 0.4.1, but README.md either shows
no version restriction, of 0.4.1 and higher
* @1.1.13 requires at least 1.1.6 of py-scs
* I am assuming since 1.1.x is python@3 only, py-six no longer required
(it was not explicitly showing up in README.md for these versions)
e741211c09