remove commercial license option and go back to MIT license

Author: jakesgordon

LICENSE

@@ -1,10 +1,20 @@
-Copyright (c) Jake Gordon
+Copyright (c) 2012, 2013, 2014, 2015, 2016, 2017, 2018, Jake Gordon and contributors
 
-"javascript-state-machine" is dual-licensed:
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
 
-  * "javascript-state-machine" is available as an Open Source project licensed under the terms
-    of the LGPLv3 license. Please see <http://www.gnu.org/licenses/lgpl-3.0.html>
-    for license text.
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
 
-  * "javascript-state-machine" is also available under a commercial license (with support). Please
-    read docs/commercial-license.md and contact jake@codeincomplete.com for more details.

README.md

@@ -133,16 +133,13 @@ Read more about
 
 You can [Contribute](docs/contributing.md) to this project with issues or pull requests.
 
-You might also want to support this project by purchasing a [commercial license](docs/commercial-license.md).
-
 # Release Notes
 
 See [RELEASE NOTES](RELEASE_NOTES.md) file.
 
 # License
 
-Dual-licensed under the [LGPL](http://www.gnu.org/licenses/lgpl-3.0.html) for the open source community and also available with support
-under a [commercial license](docs/commercial-license.md).
+See [MIT LICENSE](https://github.com/jakesgordon/javascript-state-machine/blob/master/LICENSE) file.
 
 # Contact
 

RELEASE_NOTES.md

@@ -1,3 +1,8 @@
+Version 3.1.0 (July 12th 2018)
+------------------------------
+
+ * Changed back to MIT license
+
 Version 3.0.1 (June 10th 2017)
 ------------------------------