tests/test-1102

httprepo: use content-type application/mercurial-0.1 for POST

Previously, application/octet-stream was used. The content-type is
currently ignored by the server.

#!/bin/sh

rm -rf a
hg init a
cd a
echo a > a
hg ci -Am0
hg tag t1 # 1
hg tag --remove t1 # 2

hg co 1
hg tag -r0 t1
hg tags