Twitter Configuration

Configure twitter handle, so that a new tweet will be posted when some one submits new proposal.

1. Create a new twitter app at https://apps.twitter.com/app/new/ .

2. It creates an app which has read only permissions. Modify permissions to Read & write and regenerate access tokens.

3. Set TWITTER_CONSUMER_KEY, TWITTER_CONSUMER_SECRET, TWITTER_ACCESS_TOKEN_KEY, TWITTER_ACCESS_TOKEN_SECRET as specified in settings file.