Merge pull request #30 from shanhind/master

Fix bug with login where invalid password throws unhandeled exception in

rtv/main.py

@@ -2,6 +2,7 @@ import argparse
 from getpass import getpass
 import praw
 from requests.exceptions import ConnectionError, HTTPError
+from praw.errors import InvalidUserPass
 
 from rtv.errors import SubmissionURLError, SubredditNameError
 from rtv.utils import curses_session, load_config
@@ -94,6 +95,9 @@ def main():
                 page = SubredditPage(stdscr, reddit, args.subreddit)
                 page.loop()
 
+    except InvalidUserPass:
+        print('Invalid password for username: {}'.format(args.username)) 
+
     except KeyboardInterrupt:
         return