Bug 896846

lib/crypto/packaged:sign_app does not clean up tempfile in
all cases
enable Czech language in Marketplace (bug 899130)
Merge pull request #953 from diox/fix-version-status-helper

Fix version_status() helper handling of deleted versions (bug 899582)
Merge pull request #925 from oremj/bug896846_tempclean

Bug 896846
Implement opensearch suggestions in the API (bug 898020)