v1.7.0

This version of Autolab focuses on several user experience improvements and bug fixes.

User Experience Improvements

• Add searchable dropdown and datepicker to extensions and create submission page (PR #636, #637 )
• Make a dynamically loaded gradesheet with on-demand and deferred loading to support larger class sizes (PR #643 )
• UI Improvements to PDF Annotations
• Gradesheet saved on change only (PR #651)

Bug fixes

• [FIX] Assessments should not start with a leading numeral. Validation was moved from course.rb to assessment.rb
• [FIX] Hides Delete Problem button if assessment problem does not exist yet. Previously, clicking it deletes the assignment.

Misc

• Increase system wide timeout for Autograding jobs