Allow configuring GUI options from command line and environment (fixes #505, closes #507)
Merge pull request #557 from AudriusButkevicius/opts

Allow configuring GUI options from command line and environment (fixes #505, closes #507)
Fix race condition while restarting (fixes #560)
Merge pull request #562 from AudriusButkevicius/restart

Fix race condition while restarting (fixes #560)
Increase max path length 1024 -> 8192 bytes (fixes #551)

PATH_MAX seems to be 4096 most of the time; Windows limit is much lower.
Don't run tests in build.sh all
Add stats package and node related statistics model
Add /rest/stats/node endpoint
Display Last Seen value in the UI
Add translation strings
Verify CONTRIBUTORS file
Warn about incorrect -goarch values
Merge branch 'pr/556'

* pr/556:
  Add translation strings
  Display Last Seen value in the UI
  Add /rest/stats/node endpoint
  Add stats package and node related statistics model
Use ISO date format because I'm opinionated
Fix table layout for wide elements, at the price of ellipsis (fixes #326, fixes #309)
Don't leak request slots (fixes #483)