* there was a db fix, let's make sure

* less frightening message for normal errors

script

* fix: do not remove package from component if we are not removing a package from repository! this is a workaround. the design of packagedb somehow does not look very good :/

* do not init comar if not necessary. IMO it is not necessary at all for postinstall scripts but anyway (^_^)

* fix: in attempting to prevent duplicate revdeps, I have mangled the code there a bit. Now it adds new rev dep correctly.

  which is the right translation. also be polite and fix grammar 
  mistake.