Feat: Creating ability to generate urls for unique AMA

[harshil15999]

Problem

1. Since the user can have multiple AMA and for each one they would like to answer the question for that particular AMA only

Solution :

1. Creation of unique urls for each AMA
2. Creation of view for that AMA where they can filter out questions for a particular AMA
3. While generating an AMA a user can add in some human readable name for a particular AMA which will help in ease of finding the AMA.
4. Or we can have only one active AMA and un active AMAs

[version0chiro]

I have added x-login, where it will pick up the username via twitter API, making it unique by nature, since we are x-ama. Do tell me if this is sufficient for our usage here or we can extend into a normal login infra as well without twitter account to allow creation of a username using a hash key