coturn 4.5.1.1

• merge PR #330 missing \r\n after http Connection:close
• merge PR #303 fix typo enpoint
• merge PR #129 seperate http web-admin listener
• regression from 4.5.1.0
  • readd pwd check
  • add to config missing web-admin-listen-on-workers option
• merge docker branch
  • Add Docker file for all database backend.
• merge sparc64 branch
  • Fix mem alingment issue on 64 bit architecture
  • That issue caused earlier "bus error" on sparc64 and armhf
• merge PR #336 Clarify Debian install
• merge PR #339 RPM build fix

Downstream changes

• Added patch to append only to log files rather to override always
• Relocate SQLite database to FHS conform /var/lib/coturn/turndb path
• Include default log file directory with logrotate configuration
• Provide /run/coturn and correct PID file handling (#1705146)
• Ensure private keys for SSL certs can be only read by coturn user
• Ensure /etc/coturn/turnserver.conf can be only read by coturn user
• Correct subpackage licensing as per Fedora Packaging Guidelines