D15718: Do not index the path if the path has no execute permissions.

[Stefan Brüns]

bruns added a reviewer: Baloo.

REPOSITORY
  R293 Baloo

REVISION DETAIL
  https://phabricator.kde.org/D15718

To: smithjd, ngraham, #baloo
Cc: bruns, ngraham, kde-frameworks-devel, #baloo, ashaposhnikov, michaelh, 
astippich, spoorun, abrahams