Fix agent-master whitespace to match dev

This makes diffing easier during agent releases

driver/event_table.c from 1435a3f
driver/ppm.h from fd896b7
driver/ppm_events.c from e8f6630

Autodetect path for dragent in sysdigcloud-probe-loader.

Squashed commit of the following:

commit dac9260
Author: Mattia Pagnozzi <mattia.pagnozzi@gmail.com>
Date:   Thu Aug 3 20:51:14 2017 +0200

    Add on_remove_container callback

commit b888442
Author: Luca Marturana <luca@sysdig.com>
Date:   Thu Jul 27 14:04:26 2017 +0200

    Event only support for k8s

update epel repo version

update epel repo version

Change initial read to byte limit + increase (draios#892)

In get_all_data(), which is used when initially reading k8s environment
data, there used to be a limit on the number of reads performed. This
was a bit sensitive to the packet size and delivery pattern, and in some
cases could give up after as few as 50-100k.

Change this to a limit on the number of bytes read, and change the limit
to 30mb.

libscap: extract number of dropped events caused by full buffer (drai…

…os#885)

print marathon groups with indentation

driver: fix compilation on kernel < 3.11 (draios#880)

O_TMPFILE was introduced in 3.11, so let's not consider it for kernels
older than that.

libsinsp: fix typo sisnp_baseliner -> sinsp_baseliner