don't unconditionally require bsh.jar and js.jar in RepositoryExternal.mk
don't unconditionally require bsh.jar and js.jar in RepositoryExternal.mk

... as they can be disabled and thus are not there at install

Change-Id: I197b5053971d2721114b2ebc7b3c31db36c3f58e

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core