added wallaby config; revised karma-test-shim
closes #486 add missing karma-test-shim.js update test files alpha.53 exclude example-config.json from plunkers
closes #485 and 479 removal all package.json from _example subdirs and add an example-config.json to each. Update add-example-symlinks to use new fns updated gitignore, package.json add tests to QuickStart