monitoring : Fix logging and add resistance to graphite parsing
monitoring : Fix logging and add resistance to graphite parsing

This patch enhances the logging in some parts of monitoring and also
makes graphite parsing tolerant to unexpected spaces during parsing the
instant stat.

Bug-Url: https://bugzilla.redhat.com/show_bug.cgi?id=1360889
Change-Id: I148fdcfee95f8f6019e202379de33f655a4c3c38
Signed-off-by: anmolbabu <3d38fb1e9c5ff2662fc415254efcdfedb95b84d5@gmail.com>

skyrings/skyring-common,skyrings/skyring-common