Base improvements

[JasonTarka]

Improve appearance of bases & links

• Show points for both capturing & holding a base
• Show non-http(s) links as full-width, so they're easier to read
• Show "Capture Points" & "Keep points" when editing bases instead of "Points" & "Bonus"

Mark bases as "held" when the team doesn't change

• Mark as 'held' rather than 'captured' when the controlling team hasn't changed
• Don't spam the gameboard's activity log with messages of a team holding a base
• Show in the activity log when a base is captured by another team

Reverse points/bonus for bases

• More logical to have main points be the capture points, and bonus be the hold points, rather than points = hold, bonus = capture.
• Adding version detection to allow old exports to be imported easily.
• Extra logging to make debugging easier/possible

Functional fixes for bases & links

• Handle http/https/ftp/etc. prefix for base URLs
  • Previously http://example.com would lead to the system calling http:12345; will now call example.com:12345
• Better display of non-http(s) links
  • If there's a port listed, show the full nc 1.2.3.4 567, if not, show just 1.2.3.4 (previously would show `nc 1.2.3.4 undefined)
  • Readonly, rather than disabled, so the text can be scrolled & selected

[JasonTarka]

Note: This relies on Utils::logMessage() from #634. Making this a separate PR to so it's easier to review.

[icebowl]

Please throw us a bone.
Last year we ran fbctf and got the base to work. This year we have a problem.
fbctf installed on base metal Ubuntu.
fbctf 10.183.7.7/16 base 10.183.7.31/16 . Then base and the game are on the same level 1 switch.
We can not get the base to work.
Base url 10.183,7.31:12345
STEPS:

• We create a jail chroot.
• Run pythons sciprt on for port 12345
• Start the game then create the BASE.
• No luck.