Server Manager Monitoring Logging + Regex Bug Fixes

 - Was logging incorrectly - redirected to correct method call
 - Ignoring case in regex search pulls in invalid entries - need to refine regex pattern set instead

Change-Id: I47b7ebb59c4b4fca4927cce15fd42b30de59908b
[Adding server to server-manager database throws exception]

Closes-Bug: #1394959

Issue:
Tags defaults was set as "" instead of None as its a dict in
defaults.py,

Change-Id: I2ec007cb0c5631f6c8631ad03a0d2307b7e29434
Merge remote-tracking branch 'upstream/master' into monitoring
Included Sys Event Logging to monitoring thread

- Tested