README: Add Contribution Guide and update license file

Signed-off-by: Petre Eftime <[email protected]>

Author: Petre Eftime

CONTRIBUTING.md

@@ -0,0 +1,68 @@
+Contributing to TinyB                           {#contributing}
+======================
+
+TinyB is an opensource project and we are actively looking for people to help
+with:
+
+- Contributions to functionality, extensions of API
+- Use and test the library, provide bug reports where appropiate
+- Help spread the word about this library to people who might need it
+- Other ideas are always welcome
+
+The recommended method to contribute is to fork on github, and then send pull
+requests to the main project. You can open issues if you find any bugs/have
+questions.
+
+If you'd rather not use github you are more than welcome to send git formatted
+patches to [email protected].
+
+Basic rules
+-----------
+- Your code must build
+- Commits must have a sign-off line by at least yourself
+- Commits must be named <file/module>: Some decent description
+- Try not to break master. In any commit.
+- Try to split commits up logically, you will be asked to rebase them if they
+  are not.
+- Try to stick to the established coding style regardless of your personal
+  feeling for it!
+
+Code signing
+------------
+
+The sign-off is a simple line at the end of the explanation for the
+patch, which certifies that you wrote it or otherwise have the right to pass it
+on as an open-source patch.  The rules are pretty simple: if you can certify
+the below:
+
+        Developer's Certificate of Origin 1.1
+
+        By making a contribution to this project, I certify that:
+
+        (a) The contribution was created in whole or in part by me and I
+            have the right to submit it under the open source license
+            indicated in the file; or
+
+        (b) The contribution is based upon previous work that, to the best
+            of my knowledge, is covered under an appropriate open source
+            license and I have the right under that license to submit that
+            work with modifications, whether created in whole or in part
+            by me, under the same open source license (unless I am
+            permitted to submit under a different license), as indicated
+            in the file; or
+
+        (c) The contribution was provided directly to me by some other
+            person who certified (a), (b) or (c) and I have not modified
+            it.
+
+        (d) I understand and agree that this project and the contribution
+            are public and that a record of the contribution (including all
+            personal information I submit with it, including my sign-off) is
+            maintained indefinitely and may be redistributed consistent with
+            this project or the open source license(s) involved.
+
+then you just add a line saying
+
+	Signed-off-by: Random J Developer <[email protected]>
+
+Using your real name (sorry, no pseudonyms or anonymous contributions.)

COPYING

@@ -1,4 +1,5 @@
-Copyright © 2015 Intel Corporation
+The MIT License (MIT)
+Copyright © 2015-2016 Intel Corporation
 
 Permission is hereby granted, free of charge, to any person obtaining
 a copy of this software and associated documentation files (the

README.md

@@ -73,3 +73,10 @@ make doc
 The hellotinyb example uses a [TI Sensor Tag](http://www.ti.com/ww/en/wireless_connectivity/sensortag2015/?INTC=SensorTag&HQS=sensortag)
 from which it reads the ambient temperature. You have to pass the MAC address
 of the Sensor Tag as a first parameter to the program.
+
+Contributing to TinyB
+============
+
+You must agree to Developer Certificate of Origin and Sign-off your code,
+using a real name and e-mail address. 
+Please check the [Contribution](CONTRIBUTING.md) document for more details.