Added execution permissions and modified README.txt to be clearer.
Forgot to save README.txt before last commit.
Added "heartbeat" to workers so the scheduler can remove them if they go down
Modified .gitignore to remove MANIFEST, build/, dist/ from remote repository.
Merge branch 'master' of https://github.com/johntanner/Megacron into johntanner-master
Merge pull request #24 from johntanner/master

Added execution permissions and modified README.txt to be clearer.