Remove lettuce tests
Fix missing parens in turbo mode template
Fix typo in self-api datadog metric
Remove an unused query.
Merge pull request #248 from edx/will/fix-turbo-mode-parens

Fix missing parens in turbo mode template
Merge pull request #245 from edx/will/remove-lettuce

Remove lettuce tests
Merge pull request #250 from edx/will/fix-metric-typo

Fix typo in self-api datadog metric
Merge pull request #252 from edx/sanchez/remove_unused_query

Remove an unused query.
Self-assessment not yet started should be unavailable.
Display submission deadline in template, not problem deadline.
Merge pull request #251 from edx/will/date-template-fixes

Date fixes
Tag i18n strings in templates