BUG: Fix bug 1953: replace strstream use with stringstream now that kwsys provides stringstream on all platforms. Many thanks to Sean McBride and Mathieu Coursolle from Rogue Research for all their effort developing the patch (and patience in waiting for its commit...!). COMP: Eliminate performance warning in generated Java wrappers regarding jboolean cast to bool. ENH: Exclude Java and Python wrappers (in addition to already excluded Tcl wrappers) from coverage analysis.