Basic search support
Repaired travis tests, see wiki for installation instructions
Automatically update index (might not be a good idea in production)
Search on landing page working
Minor code cleanup
Fixed travis test
Fixes #69
Splitted requirements into separate files and folders
Forcing recompilation of psycopg2 on Travis, as it holds a broken version in its software repository.
Merge branch 'enhancement-splitted-requirements' into feature-search

Conflicts:
	openreview/requirements/pip/common.txt
Haystack-Elasticsearch breaks isolation of tests. Fixing
merge
working again
Merge branch 'master' into feature-search

Conflicts:
	openreview/apps/accounts/tests.py
	openreview/apps/papers/tests/scrapers.py

Resolved
small fix
Merge branch 'base-design' into feature-search

Conflicts:
	openreview/apps/accounts/tests.py
	openreview/apps/main/templates/main/landing_page.html
	openreview/apps/main/tests/review.py
	openreview/apps/main/tests/vote.py
	openreview/apps/papers/templates/papers/overview.html
	openreview/apps/papers/urls.py
	openreview/apps/papers/views.py
	openreview/settings.py