Boss uses the SIGAR lab to determine the executables of geese. Geese pass a query
string to boss and boss will search for all the processes and find the one
matches the query. Logics are added to load the SIGAR native libraries on different OS and
architectures.

Alterted the submitWorkflow API and the Workflow class to return a JSON string of executables of geese, which
the ProxyApplet can then pass to javascript to update the UI.

Changed the Gaggle constants to point to the new boss so by default geese will
start the new boss instead of the 2007-04 one on bragi.