Factor out browser ZCML into its own configure.zcml in browser package.
Customize plone.dexterity default view for all dexterity content in

order to be able to omit specific fields.
Removed previously customized default views for business case dossiers and documents.

The default view is now customized for all dexterity content.
Omit `public_trial` and `public_trial_statement` fields from dossier and

repository folder default views.
Customized document default view in order to render `file` field in NO_DOWNLOAD_DISPLAY_MODE.
Merge pull request #424 from 4teamwork/lg-remove-public-trial-from-dossier-and-repo-default-views

Remove public trial fields from dossier and repository default views