fix: roundup-server Content-Length when generating index Cleanup tracker index generation by roundup-server. Send correct Content-Length headers so HTTP/1.1 connections don't hang. Also added charset to the Content-Type header.

#!/usr/bin/env python
from __future__ import print_function
import zlib, base64, sys
print(base64.encodestring(zlib.compress(sys.stdin.read())))