Update H2 versions

Add description of editor and criterion types.

Add penalty as criterion

Update libs. Modify build to use libs rather than lib.

Remove deploy test folder

Add retry with back off support for handling rate limits.

Rationalised normal vs special vs penalty

Add more complete .gitignore

Update author attribute in JavaDocs

Update dependencies. Clean up build.gradle.

Format SQL

Add jdtls stuff to ignorefile

Add CC property

Fix the result dialog not appearing problem. Fix some schema issues.

Add database startup scripts

Make marking window modal. Fix bugs with incomplete results.

Update properties file

Change 'special' criterion to text fields. ...

* Allows arbitrary values for things like late penalties (within specified ranges).
* Can abuse this to mark exams.

Switch DAO to using submission_id for finding students. Recursive code reformat.

Minor cleanup. Library updates. Update schema to latest version.

Bunch of stuff that I forgot to commit a year ago. Whoopsy.

Converted to Gradle project, and switched to FlatLAF.

Added more properties.

Made expandable text areas optional (check box).

Updated schema.

Added a clear mark button. Closes #2.

Text areas expand on focus. Closes #3.

Added batch email, and sent indicator. Closes #1, Closes #6.

Added batch email, and sent indicator. Closes #1, Closes #6.

Handle incorrect password. Thread around report generation. Dialogs -> Frames.