Refactor host_info_report

Make the policy easier to read and seperate out vairous sections into
seperate bundles.
Merge pull request #147 from nickanderson/refactor/host_info_report

Refactor host_info_report
Redmine#4507: show installed software
reports/host_info_report.cf: show interface addresses and flags
Cancel out all the pending notifications once in a day.
typo correction and make the promise execute only once in 24 hrs
use the internal variables instead of the absolute path.
Merge pull request #148 from sudhirpandey/master

Cancel out all the pending notifications once in a day.
clarify that memory size is in MB, not GB, B, etc.
Merge pull request #149 from estenberg/inventory/attribute-mem-size

clarify that memory size is in MB, not GB, B, etc.
Makefile.am: removing, unused.