[vz-dev] [volkszaehler/volkszaehler.org] bf7ddd: Add Content-Security-Policy (#509)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/volkszaehler/volkszaehler.org
  Commit: bf7dddd26a48cb735ba8f0c393024ca3dd08422b
      https://github.com/volkszaehler/volkszaehler.org/commit/bf7dddd26a48cb735ba8f0c393024ca3dd08422b
  Author: Robin Schneider <ypid at riseup.net>
  Date:   2016-11-20 (Sun, 20 Nov 2016)

  Changed paths:
    M htdocs/.htaccess

  Log Message:
  -----------
  Add Content-Security-Policy (#509)

Work and testing was done by @andig so @ypid committed in the name of
andig as andig did all the work and requested a PR :wink:
Also, the git commit is automatically gpg signed by ypid as all commits
committed by him.

Note that ypid has not tested this policy yet.

Closes: #504