6898251: Add ALT_DROPS_DIR feature to jaxp/jaxws
Summary: Allow the directory for downloaded drops to be set using ALT_DROPS_DIR
Reviewed-by: ohair, jjg
^build/
^dist/
^nbproject/private/
^src/share/tools/hsdis/build/
^src/share/tools/IdealGraphVisualizer/[a-zA-Z0-9]*/build/
^src/share/tools/IdealGraphVisualizer/build/
^src/share/tools/IdealGraphVisualizer/dist/