completed ee --version command

ee/cli/controllers/base.py

@@ -1,6 +1,13 @@
 """EasyEngine base controller."""
 
 from cement.core.controller import CementBaseController, expose
+from ee.core.variables import EEVariables
+VERSION = EEVariables.ee_version
+
+BANNER = """
+EasyEngine v%s
+Copyright (c) 2015 rtCamp Solutions Pvt. Ltd. 
+""" % VERSION
 
 
 class EEBaseController(CementBaseController):
@@ -9,6 +16,9 @@ class EEBaseController(CementBaseController):
         description = ("EasyEngine is the commandline tool to manage your"
                        " websites based on WordPress and Nginx with easy to"
                        " use commands")
+        arguments = [
+            (['-v', '--version'], dict(action='version', version=BANNER)),
+            ]
 
     @expose(hide=True)
     def default(self):