0.16.2-ls3

LinuxServer Changes:

Rebasing to alpine 3.10.
Raneto Changes:

2019.01.19 / v0.16.2

• [New] Polish Translation
  • contributed by @suprovsky - Radosław Serba
• [Fixed] base_url ignored on login page #200
  • contributed by @GrahamDumpleton
• [Fixed] Request for translations.json doesn't include base_url #279
  • contributed by @GrahamDumpleton
• [Fixed] Proxy subfolders #189
  • contributed by @GrahamDumpleton
• [Misc] Dependency upgrades