Support Libraries Version Tutorial (Troubleshooting "All com.android.support Libraries Must Use the Exact Same Version")

This code is for tutorial that can be found here:

http://www.homebrewandtechnology.com/blog/allcomandroidsupportlibrariesmustusetheexactsameversion

Original code is modified from

https://github.com/byoutline/SecretSauce