[stable10] Backport of Add mime types for sharedlib and executable
[stable10] Backport of Add mime types for sharedlib and executable

Add  mime types for application/x-sharedlib
and application/x-executable

Signed-off-by: Sujith H <f003c101b6db321bb70f3b324d211f3cd092837a@owncloud.com>

owncloud/core,owncloud/core,owncloud/core,phil-davis/core,owncloud/core,owncloud/core