use Settings augmentation to customize the D1Client.CN_URL when used in a Metacat deployment.
Merged in the D1_0_6_2_BRANCH changes that include the transition from ObjectFormat calls to ObjectFormatCache calls.
allow the addition of properties via code
add boolean return to indicate whether or not a property was modified
Make properties handlers implement an interface so you can use configurable or non-configurable properties.
Change location of PropertyService to properties directory