Encode output of error pages, possibly fixing issues at Aachen.
Encode output of error pages, possibly fixing issues at Aachen.

This definitely fixes the issue that Nginx and Apache are unable to
display 404, 500 etc. pages through HappyFace.

It seems that the encoding tool does not act on error page output.

git-svn-id: f50160b2b845c6bcd4e57c8186383b5eb743a915@924 5ec1a27d-59bc-451c-a1e5-77859e3e35f3

HappyFaceMonitoring/HappyFace,HappyFaceMonitoring/HappyFace,HappyFaceMonitoring/HappyFace