Remove match & multi English string files, and add them to .gitignore.
Show level name in editor.
Add a match & multi .seeded_ files to .gitignore.
Merge pull request #624 from code-dot-org/add-level-name

Show level name in editor.
Merge branch 'finished' of github.com:code-dot-org/dashboard into finished
Merge branch 'finished' into delivered