New Work routes for making / editing works

- Add new works from the works controller via /works/new
- Edit works via /works/:objectId/edit

Only some of the fields are available for editting.
Make the buttons larger

.btn-large changed to .btn-lg in bootstrap at some point
Added New Work button

Push for a new work.
Merge branch 'master' into hr-work-edit
Merge pull request #219 from nla/hr-work-edit

New Work button