Karl Wette authored Apr 04, 2015 and Reinhard Prix committed Apr 09, 2015

- Move workspace into common Fstat data
- Move workspace ownership logic into XLALCreateFstatInput()
- Methods that use a workspace must supply a destructor function
- User now just needs to pass a previous FstatInput to optionalArgs;
  the FstatInput that allocated the workspace also destroys it
- Refs #2001
Original: 4168a79a1fcff721685f948f3b41a9a80fda801e