Manual and menu links

[mdsimpson42]

A number of small updates to the interface, discussed in a meeting with Polly (09/04). Some may refer to other issues.

• [x] Building Names - hide the building name and rename the link to "building name link".
• [x] Remove UPRN from Core
• [x] Add link to UPRN license in Info button.
• [x] Remove License Page
• [x] Combine "CCRP Contributor & Data User Data Accuracy & Ethical Use Agreement" into single link on menu
• [x] Landing page text - make "managed by the Turing" configurable
• [x] @polly64 Integrate Code of Conduct into manual.
• [x] @polly64 Add license page to manual
• [x] @polly64 to check links on sign-up page (link to manual and not the site)