New model for distributed cross-platform execution
Line endings issues
Merge remote-tracking branch 'upstream/master'

Conflicts:
	codalab/apps/web/models.py
	codalab/apps/web/tasks.py
	codalab/apps/web/templates/web/index.html
	codalab/apps/web/views.py
Normalize line endings
Merge branch 'master' of https://github.com/cpoulain/codalab

Conflicts:
	codalab/apps/jobs/models.py
	codalab/apps/jobs/tests.py
	codalab/apps/web/tasks.py
	codalab/apps/web/templates/web/index.html
	codalab/apps/web/views.py
Remove unwanted files
Python version of compute worker
Add sample config file
Remove useless comment
Removed Foundation icon fonts b/c we don't use them
Introduce BaseConfig, derive compute.WorkerConfig from it and add tests
another synchronization check on result retrieval.
Deployment automation
Removed unused arguments and file paths.
Change submission signaling to use post_save
Added FAQ.
Enable competitions to allow auto-registration.
Fix packaging of results when executed locally.
First draft of fabfile for deployment commands
Rationalize requirements files and adjust one-time setup scripts to address issue #280