Add library for getting commonplace info

lib/info.js

@@ -0,0 +1,17 @@
+var fs = require('fs');
+var path = require('path');
+
+module.exports.src_dir = function() {
+    var cwd = process.cwd();
+    var temp;
+    if (fs.existsSync(temp = path.resolve(cwd, 'hearth'))) {
+        return temp;
+    } else {
+        return path.resolve(cwd, 'src');
+    }
+};
+
+module.exports.version = function() {
+    var package_json = path.resolve(__dirname, '../package.json');
+    return JSON.parse(fs.readFileSync(package_json)).version;
+};