Adding Toast for Server Down

[miPlodder]

Summary:

Inform user to try to Log In after sometime.

Steps to reproduce:

1. Enter Credentials.
2. Press Submit button.

Expected behavior:

Whenever server is not responding, inform using Toast.

Observed behavior:

Nothing happens on pressing the Submit Button.

Device and Android version:

Android Marshmallow

Screenshots:

[miPlodder]

@therajanmaurya I would like to work on this issue.

[nb2998]

It seems to be same as issue #206

[miPlodder]

Yeah, didn't saw it. @nb2998

[miPlodder]

I have resolved this issue, should I send a PR ? @therajanmaurya