- Add a main entry point for the jasmine-core npm

- jasmine-core can now self test with the jasmine-npm
- Add node examples files
- Add node_boot.js for node environment
- Move jasmine-core npm packaging to .npmignore
- removing src_dir and src_files from jasmine.json b/c jasmine-npm does not support requiring source files automatically.

lib/jasmine-core.js

@@ -0,0 +1,2 @@
+module.exports = require("./jasmine-core/jasmine.js");
+module.exports.boot = require('./jasmine-core/node_boot.js');