update copyright year to 2014
added DiskUsage check
fix cs
added tests
fixed cs, added validation and added tests
fixed typo, ordered use statements a-z
ordered use statements a-z
Merge pull request #27 from kbond/disk-usage

Add DiskUsage check.
Fix namespace in sample code
Merge pull request #29 from baldurrensch/patch-1

Fix namespace in sample code
Merge pull request #19 from samsonasik/copyright2014

update copyright year to 2014
Merge pull request #28 from kbond/apc-fix

fixed cs, added validation and added tests for APC checks