push update CLItest
Straighten out comments in Inventory
Test stdItem library methods using InvTest

TODO
*Inventory: add items to library
*Inventory: get file I/O working to add items en masse
*InvTest: get CLI I/O working to allow user to add items manually
Added IO package to be used with InvTest

*From Michael Trigoboff's pcc package, to be adapted for our needs
Merge pull request #19 from jnickg/invPackage

Inv package