tests/test-1102

increase code coverage of test-clone

* add a non-inlined filelog to the test repo
* add 'clone --pull' test case

#!/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