Add notary remove signature test case in nightly
1. Update E2E image Dockerfile for adding notary CLI;
2. Add test case of remove notary signature.
Signed-off-by: Danfeng Liu (c) <danfengl@vmware.com>
* fix sed -i in MacOS, BSD sed and Linux sed are different, use sed -i -e instead
* change target name from version to ui_version
* fix cleandockercomposefile target to clean all generated docker-compose files
Signed-off-by: 陈德 <chende@caicloud.io>