Update README.md

Updated for development status information
Update CONTRIBUTORS
Updated to new changelog
Added changelog entry for 1.7-Rev1
Added tentative changes to CHANGELOG for 2.0
Added template for the SimpleDebug class (Bug #12)
Removing SimpleFile class from 2.0 as it will be re-created with the SplFileObject base class.
Removing other classes pushed to post-2.0.
Update README.md
Merge branch 'issue-12' of https://github.com/Jonnycake/SimpleSite into issue-12
Decided on using magic functions to set up logging functions to allow for more flexibility with creating instances (Bug #12)
Still working out how to make SimpleDebug work how I want it to.   Separated it into two classes because of PHP version limitations when using __callStatic(). (Bug #12)
A little more work done on SimpleDebug. (Bug #12)
Resolves #4 - updated theBasics theme to use SimpleCSS. (Bug #4)
Merge branch 'issue-4' of https://github.com/Jonnycake/SimpleSite into 2.0-development
Merge branch '2.0-development' of https://github.com/Jonnycake/SimpleSite into issue-12
Updated adminCP to reflect change in configuration path. (Bug #63)
Added link in adminCP to allow for debug to be toggled on and off on a per session basis.  It was supposed to be a dropdown, however I don't think I will be implementing different mods in SimpleDebug due to the time crunch so this is the next best thing. (Bug #14)
Merge branch '2.0-development' of https://github.com/Jonnycake/SimpleSite into issue-12
Started on output functions and added to test script. (Bug #12)