Update lazyserver to use paste or gunicorn conditionally

Also get rid of env.in, we're not using that for now.

lazystarter.sh

@@ -1,81 +0,0 @@
-#!/bin/sh
-
-# GNU MediaGoblin -- federated, autonomous media hosting
-# Copyright (C) 2011 Free Software Foundation, Inc
-#
-# This program is free software: you can redistribute it and/or modify
-# it under the terms of the GNU Affero General Public License as published by
-# the Free Software Foundation, either version 3 of the License, or
-# (at your option) any later version.
-#
-# This program is distributed in the hope that it will be useful,
-# but WITHOUT ANY WARRANTY; without even the implied warranty of
-# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
-# GNU Affero General Public License for more details.
-#
-# You should have received a copy of the GNU Affero General Public License
-# along with this program.  If not, see <http://www.gnu.org/licenses/>.
-
-selfname=$(basename "$0")
-local_bin="./bin"
-case "$selfname" in
-    lazyserver.sh)
-        starter_cmd=gunicorn
-        ini_prefix=paste
-        ;;
-    lazycelery.sh)
-        starter_cmd=celeryd
-        ini_prefix=mediagoblin
-        ;;
-    *)
-        echo "Start this script with the name lazyserver.sh or lazycelery.sh">&2
-        exit 1
-        ;;
-esac
-
-if [ "$1" = "-h" ]; then
-    echo "$0 [-h] [-c filename.ini] [ARGS_to_${starter_cmd} ...]"
-    echo ""
-    echo "   For Gunicorn settings, see at:"
-    echo "      http://docs.gunicorn.org/en/19.0/settings.html"
-    echo ""
-    echo "   The configfile defaults to ${ini_prefix}_local.ini,"
-    echo "   if that is readable, otherwise ${ini_prefix}.ini."
-    exit 1
-fi
-
-if [ "$1" = "-c" ]; then
-    ini_file=$2
-    shift; shift
-elif [ -r "${ini_prefix}_local.ini" ]; then
-    ini_file="${ini_prefix}_local.ini"
-else
-    ini_file="${ini_prefix}.ini"
-fi
-
-echo "Using ${starter_cmd} config: ${ini_file}"
-
-if [ -f "${local_bin}/${starter_cmd}" ]; then
-    echo "Using ${local_bin}/${starter_cmd}"
-    starter="${local_bin}/${starter_cmd}"
-elif which "${starter_cmd}" > /dev/null; then
-    echo "Using ${starter_cmd} from \$PATH"
-    starter=$starter_cmd
-else
-    echo "No ${starter_cmd} found, exiting! X_X"
-    exit 1
-fi
-
-set -x
-export CELERY_ALWAYS_EAGER=true
-case "$selfname" in
-    lazyserver.sh)
-        $starter --paste "$ini_file" --log-file=- $@
-        ;;
-    lazycelery.sh)
-        MEDIAGOBLIN_CONFIG="${ini_file}" \
-            CELERY_CONFIG_MODULE=mediagoblin.init.celery.from_celery \
-            $starter -B "$@"
-        ;;
-    *) exit 1 ;;
-esac