remove AVR example, fix documentation gaps, remove redundant code

Author: cjhdev

contributing.md

@@ -9,15 +9,17 @@ Raise an issue, and if you have a fix, make a pull request.
 
 ### Documentation Improvements
 
-Make a pull request.
+Raise an issue if it's complicated.
+
+Make a pull request if it's simple.
 
 ### Feature Requests and Proposals
 
 Raise an issue.
 
-### Questions
+### Questions / Clarifications
 
-Start a discussion.
+Raise an issue.
 
 ### Feature Contributions
 

examples/avr/bin/.gitignore

@@ -5,6 +5,16 @@ Note that versions are only "released" when there is a git tag with the same nam
 If you have checked out master, the top version listed here may be a
 work in progress.
 
+## 0.5.6
+
+- removed incomplete AVR example
+- added missing interrupt line integration to doxygen and chip interface examples
+- updated contribution guidelines
+- updated porting guidelines
+- changed MBED wrapper to not include platform specific code where it shouldn't
+- added missing session update event
+- use ldl_stream.c functions in ldl_ops.c
+
 ## 0.5.5
 
 - fixed bug where DevNonce was not being incremented for each join request frame sent.