+ it currently includes just the smoketest and is available only for Linux

+ the side effect is that it builds the smoketest before instsetoo_native
+ it runs it only during dev-install when the variable RUN_SMOKETEST == YES

RPM strips debuginfo packages from libraries only when they have
execuateble rights

It does not fix permissions of the prebuilt mozilla libraries; scp2 defines
the same permissions for all files inside the mozruntime.zip archive.
Unfortuantely, it icludes libraries and data files togetger.

some loon ran a little amock (*cough*)

This reverts commit 28275d47.

otherwize double space will occur in the variable and
it will be replaced to ',,' instead of ',' -> build fails

This reverts commit d7647965.
Bjoern fixed it correctly, this hack is not needed.