Added initial fixture.

Creates moderator group.
Adds four questions.

"./bin/django loaddata fixture_name" will load the data.
Exam app using django 1.6.5

Removed version specification to install latest
version of django.
Added settings.py to the exam app.
Removed default from import statement in urls.py
since it is deprecated.
Moved templates and static inside the app.
Made modifications.

initial_fixture only to add moderator group.
sample_question file modified to add language and snippet.
Moved code server in the app folder.

moved output folder in the app.
Command 'add_group' created for adding the moderator group
Merge branch 'initial_fixtures' into reusable_app
Removed space
Merge branch 'initial_fixtures' into reusable_app
Merge pull request #33 from prathamesh920/initial_fixtures

Added initial fixture.
Merge pull request #34 from prathamesh920/reusable_app

Reusable app