FELIX-518 - add unit test for signed DPs:

- created utility to create signed deployment packages for use in itests;
- verify that signed DPs are correctly installed;
- some small cleanups and typos fixed.



git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1724647 13f79535-47bb-0310-9956-ffa450edef68
13 files changed