www/radicale: Various fixes including startscript
- Fix startscript after FLAVOURing
- Add missing py-passlib dependency (required for authentication)
- Pet portlint and move USES above USE_*
PR: 228313
Submitted by: myself
Approved by: Sunpoet Po-Chuan Hsieh (maintainer timeout)
MFH: 2018Q2