2019-08-24, 2019-08-25 git-ssb-web maintenance. 3hrs

• git-ssb-web: fixed some issues and released v2.11.7 %HQR/uM1...
• git-ssb-web: followed up on and/or closed some issues. %crbf1OM... %WBQIu4b... %DkSJl0Q... %R7382yW... %Lz6XX/p... %hKy8xWa... %8+vKenB... %ncInZuf...
• git.scuttlebot.io: fixed caching problem. %SFE1RV7...