Fix Executive's Budget Proposal's input type

The value contained an illegal character which resulted in a type
invalid error.
Remove filter to show admins in researcher list

Administrators are marked as such in the researcher list to better
separate them from the researchers.
Override the Accept-Language header for logged in user

When a user is logged in we want to serve the language the user
account is configured for and not pick the language from the
Accept-Language header which is the default behaviour of i18n-abide
Fix Executive's Budget Proposal's input type when editing document

The same error as before. The value contained an illegal character
which resulted in a type invalid error.
Merge remote-tracking branch 'origin/develop' into develop

Conflicts:
	index.js