New screen shots for Maps & Networks

Updated image files using new color schemes and data.
tweak quotes in poem titles for better display on the site

[Finishes #76734254]
convenience admin edit link from profile pic, if user has edit perms
adjust logic for archival collection url used in profile pictures

[Fixes #76396310]
add dataprep logic to capture multiple untitled pieces or translation info

[#76734756 #75999062]
display groupsheet description in list (multiple untitled pieces, translation)

[#76734756 #75999062]
add south so we can use migrations for managing initial flatpage content

[#76799558]
south migrations for loading flatpage content from html file

overview with scroll-spy side navigation modeled on Group sheet poem nav [#76799558]
tweak styles for overview flatpage to work better with scrollspy sidenav

[#76799558]
generalize flatpage migration to make it easier to add other flatpage content as html
update deploy notes for change in loading initial flatpage content
initial south migration for profile picture db model
Merge branch 'develop' into feature/image-tools

Conflicts:
	belfast/people/models.py
	belfast/settings.py
tweak new profilepicture model and set up migrations
tweak new profilepicture model and set up migrations
refine profile pic migration
tweak migration to try to initialize Images better
adjust people list and profile template for change to profile model