Merge pull request #77 from ehmatthes/ongoing_development

Ongoing development
Merge pull request #79 from ehmatthes/ongoing_development

Ongoing development
Note about newness_factor formula.
Removed old function get_parent_submission, including tests.py.
Moved caching tests to separate file.
Merge pull request #80 from ehmatthes/testing

Moved caching tests to separate file.
Moved load test to separate file.
Merge pull request #84 from ehmatthes/testing

Moved load test to separate file.
Fixed broken anchor links on /guidelines.