Up to this point, SimplyUPnP is just a little piece of code capable of finding UPnP devices, through SSDP protocol.
UPnP is a huge standard, full of details, so any kind of contribution is welcome. Take a look on the official specifications for ideas.
SimplyUPnP is licensed under LGPL v3, which means, in short, that you:
- have to make this and derivate source code available (except when is for private use only),
- shouldn't embed and/or copy this and derivate source code in your software (otherwise, you have to make your whole code public), and
- can use this in your proprietary project as long that you observe the rules above.
(Please, note this list DOES NOT override the license text).
Anyway, I doubt you would like to use this on current stage.
development branch is for the code in progress that shouldn't be used on production and master branch is for the most recent stable release (I hope someday).