Update changelog and contributors

Contributors.md

@@ -1,5 +1,5 @@
 ## Contributors
-These are the active contributors of this project that you may contact if there is anything you need help with or if you have suggestions. 
+These are the active contributors of this project that you may contact if there is anything you need help with or if you have suggestions.
 
 - [z3t0](https://github.com/z3t0) : Active Contributor and currently also the main contributor.
   * Email: zetoslab@gmail.com
@@ -15,7 +15,6 @@ These are the active contributors of this project that you may contact if there
 - [Sebazzz](https://github.com/sebazz): Contributor
 - [lumbric](https://github.com/lumbric): Contributor
 - [ElectricRCAircraftGuy](https://github.com/electricrcaircraftguy): Active Contributor
+- [henkel](https://github.com/henkel): Contributor
 
 Note: This list is being updated constantly so please let [z3t0](https://github.com/z3t0) know if you have been missed.
-
-

changelog.md

@@ -1,3 +1,6 @@
+## 2.1.1 - 2016/05/04
+- Added Lego Power Functions Protocol [PR #309](https://github.com/z3t0/Arduino-IRremote/pull/309)
+
 ## 2.1.0 - 2016/02/20
 - Improved Debugging [PR #258](https://github.com/z3t0/Arduino-IRremote/pull/258)
 - Display TIME instead of TICKS [PR #258](https://github.com/z3t0/Arduino-IRremote/pull/258)
@@ -15,7 +18,7 @@
 ## 2.0.1 - 2015/07/26 - [Release](https://github.com/shirriff/Arduino-IRremote/releases/tag/BETA)
 ### Changes
 - Updated README
-- Updated Contributors 
+- Updated Contributors
 - Fixed #110 Mess
 - Created Gitter Room
 - Added Gitter Badge
@@ -35,7 +38,7 @@
 - Added Denon Protocol
 - Added Pronto Support
 - Added Library Properties
-- Added Template For New Protocols 
+- Added Template For New Protocols
 - Added this changelog
 - Added Teensy LC Support
 - Added ATtiny84 Support
@@ -44,7 +47,7 @@
 
 ### Deletions
 - Removed (Fixed) #110
-- Broke Teensy 3 / 3.1 Support 
+- Broke Teensy 3 / 3.1 Support
 
 ### Not Working
 - Teensy 3 / 3.1 Support is in Development