7.15.0

Feature

1. Users can download the questionnaire request URL as a QR code

Fixed

1. Pedigree: Unlinking a patient doesn't clear the labelled IDs and age immediately
2. Pedigree: Cannot enter labelled ID values in the node menu out of order
3. Pedigree: Age at death value is not saved
4. The Pedigree Cancers tab loads extra entries which get stuck
5. Translation keys for OpenPatientRecord

Improved

1. Update pedigree legend cancer colours
2. Change the "User Guide" link in the PhenoTips application to point to docs.phenotips.com
3. UDN: auto-push - implement better error handling for the remote push feature