initial commit
version 1.3.0
filled out README
version 1.4.0
version 1.5.0
version 1.5.1
version 1.5.2
version 1.5.3
version 1.5.4
version 1.5.5
version 1.5.6
version 1.5.7
version 1.5.8
version 1.5.9
version 1.5.10
version 1.5.11
version 1.5.12
version 1.5.13
version 1.5.14
version 2.0.0