feat(endecadgraph): new collector

Change-Id: I96d444b13962337f1504f8de961a74b5548f1d6e
new(feat): added collector for chrony time offsets (ntp time skew)

Change-Id: If4863300ed483dcd83280dfe5c6d668eeacad530
filestat : reduce log at info level
Merge pull request #692 from NotSqrt/master

filestat : reduce log at info level
JolokiaCollector Error Handling

Properly handle non-200 response codes
Merge pull request #693 from MichaelDoyle/jolokia_collector_error_handling

JolokiaCollector Error Handling
fix(feat): removed internal time unit conversion, now using the diamond one

Change-Id: Ibf52200bf05baa1dc5cce2f82284aeea85d5eb80
fix(feat): removed dead code

Change-Id: I5ecbcd6ad1c691de1298506996b9cd176414e9e7
Merge pull request #642 from rtoma/endeca

feat(endecadgraph): new collector
Merge pull request #663 from rtoma/chronyd

new(feat): added collector for chrony time offsets (ntp time skew)
Fixes #10, extend the graphite handler to support IPv6 hosts
fix(feat): better exception handling in uptime collector to pass tests

Change-Id: I6a63233247224bb674cf4866dbc3cf2183a3cb75
fix(feat): made elasticsearch field optional (not available in fixture data from older version)

Change-Id: I43234c7903c66e547c4e89570cc0489dc9315279
Merge pull request #695 from rtoma/es-fix

fix(feat): bug fixed to allow pass of elasticsearch unittest
Merge pull request #694 from rtoma/fix-uptime

fix(feat): better exception handling in uptime collector to pass tests