Allow app to successfully be run from inside the dummy app

Webmock was stomping on requests to Solr
Representative file's thumbnail should be displayed on work's page

HYDRASIR-362
Adjusting curate gem generation
Merge pull request #478 from projecthydra/reorganize-dummy-gemfile

Allow app to successfully be run from inside the dummy app
Merge pull request #479 from projecthydra/feature/362-thumbnails

Representative file's thumbnail should be displayed on work's page
Profile sections were failing in production

This is an emergency triage
Merge pull request #480 from projecthydra/hotfix/profile-triage

Profile sections were failing in production
HYDRASIR-394 Profile sections should not have thumbnails/avatar

Modified new/edit collection form to not show avatar controls when the collection is a ProfileSection.
Modified collections_controller create method to skip the setting of the .file when the collection is really a ProfileSection
Modified the show form for collection to not show the avatar for a ProfileSection.
Added spec test to verify avatar control is not present when creating/editing a profile section.