ALLJOYN-2227: Fix #include directive for Status.h.

Change '#include "Status.h"' to '#include <alljoyn/Status.h>'

Change-Id: I806fd9cefcd925c4ab6a21f677666f992b79dd8e
Changed timings to make runs shorter
ALLJOYN-2222: JavaScript binding SConscript cleanup.

Isolate the JavaScript SCons environment so that command line options for just
the JavaScript binding don't get added to AllJoyn core.

Other SConscript file cleanups too.

Change-Id: I15e21583e564a6104a3e3871fbd7a47d10d33e65