FELIX-3777: simplify RoleRepositoryStore API.

- allow any kind of exception to be thrown from the store implementation;
- remove the need for initialize() and close(). Stores needing to initialize
  themselves do so by using the standard OSGi lifecycle methods;
- allow the store to directly filter for roles;
- several other dings and dents fixed.



git-svn-id: https://svn.apache.org/repos/asf/felix/trunk@1412574 13f79535-47bb-0310-9956-ffa450edef68
35 files changed