expose bower version

lib/index.js

@@ -1,6 +1,7 @@
 var abbrev = require('abbrev');
 var mout = require('mout');
 var commands = require('./commands');
+var pkg = require('../package.json');
 
 var abbreviations = abbrev(expandNames(commands));
 abbreviations.i = 'install';
@@ -34,6 +35,7 @@ function clearRuntimeCache() {
 }
 
 module.exports = {
+    version: pkg.version,
     commands: commands,
     config: require('./config'),
     abbreviations: abbreviations,