Make KeyboardInterrupt catch more aggressive
Make KeyboardInterrupt catch more aggressive

Fixes: #186
Signed-off-by: Brenden Blanco <8e41c261aa8ddb01230a40c21c26a049c1f6d041@plumgrid.com>

romain-intel/bcc,iovisor/bcc,zaafar/bcc,shodoco/bcc,zaafar/bcc,romain-intel/bcc,iovisor/bcc,romain-intel/bcc,tuxology/bcc,mbudiu-bfn/bcc,brendangregg/bcc,tuxology/bcc,tuxology/bcc,brendangregg/bcc,brendangregg/bcc,brendangregg/bcc,mcaleavya/bcc,shodoco/bcc,mkacik/bcc,mkacik/bcc,tuxology/bcc,romain-intel/bcc,zaafar/bcc,mbudiu-bfn/bcc,mbudiu-bfn/bcc,iovisor/bcc,mbudiu-bfn/bcc,iovisor/bcc,shodoco/bcc,shodoco/bcc,shodoco/bcc,mbudiu-bfn/bcc,tuxology/bcc,romain-intel/bcc,mcaleavya/bcc,mcaleavya/bcc,mcaleavya/bcc,mkacik/bcc,zaafar/bcc,zaafar/bcc,mcaleavya/bcc,iovisor/bcc,brendangregg/bcc,mkacik/bcc,mkacik/bcc