ignore ICC 15 *.db3

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>
disable OPTREP output due to bug in ICC 14 and 15 writting into same file in parallel builds

Signed-off-by: Marian 'VooDooMan' Meravy <vdm113@gmail.com>