Improve taskman

- add function decorator @task
- allow keword args in add_task
Make hash_submission a @task
Improve web-ui submissions

- Generate WTF form classes dynamically for all groups
- Use 'artifact' instead of 'archive'
- Rename nav bar link 'Submit archive' to 'Submit'
- Navbar submission link is now drop down to provide for all groups
- Remove complex validations, simplify forms
- Add submit_artifact.html
- Update submission routes to be /submit/<group>/
Remove unused templates
Handle empty coordinates correctly for web-ui
Introduce Reggie to ui
Title formatting
Update style sheet

- fill footer to bottom
- make navbar hover more noticible
- use #101010 instead of bs navbar default for background
- use #850000 for link colors
- update navbar styling
Update base template

- add links for other victims sites
- add home link to navbar
- update copyright footer
- update footer
Refactor navbar content
Make footer height set