Add new streamfields to public pages, apply link and box.

...public/funds/migrations/0012_add_box_apply_link_fields.py

.../public/news/migrations/0011_add_box_apply_link_fields.py

...ublic/people/migrations/0013_add_box_apply_link_fields.py

...lic/projects/migrations/0008_add_box_apply_link_fields.py

...tandardpages/migrations/0004_add_box_apply_link_fields.py

...andardpages/templates/standardpages/information_page.html

opentech/public/utils/blocks.py

opentech/templates/blocks/apply_link_block.html

opentech/templates/blocks/box_block.html