0.2.0 related changes

[codekidX]

The changes done to 0.2 version is huge:

• Provide interoperability with stdlib
• Everything is a controller now -- and handlers can be casted into controller using UseHandler, UseHandlerFunc, UseIntermHandler
• HookContext is separate from rubik.Request
• The method signature of a controller now is:

func someCtl(req *rubik.Request) {
    req.Respond("Hello")
}

• Success and Failure methods are now *req.Respond and *req.Throw
• Injector now returns the pointer of the Entity for modifications in Middlewares
• Middlewares are now rubik.Controller too
• bump version
• Fix Render, Proxy method with the new signature
• Remove storage routes util