Updated macros to use symbolic name as bundle name.

git-svn-id: https://svn.apache.org/repos/asf/celix/trunk@1632018 13f79535-47bb-0310-9956-ffa450edef68
Added hash map to keep track of proxy instances.

git-svn-id: https://svn.apache.org/repos/asf/celix/trunk@1632019 13f79535-47bb-0310-9956-ffa450edef68