Metacat

add methods for testing CNodeService impl. Still some failing tests, but whittling them down

refactor to test the entire CN service impl

do not use pisco for referral testing (merge from 1.9.5)

merge 1.9.5 changes to trunk (delete now preserves access rules and docs can be read after deletion)

CNCoreImpl is replaced by CNodeService

Get username and password from a property file.

Updated tests to use ObjectFormatCache.getInstance(), and added tests for CNCoreImpl.listFormats and getFormat().

When calling SystemMetadata.getObjectFormat(), return the string value of the ObjectFormatIdentifier rather than ObjectFormat.toString() (which no longer returns the fmtid string).

organize imports so that it is clearer what dependencies exist on the D1 jars

Merged in the D1_0_6_2_BRANCH changes that include the transition from ObjectFormat calls to ObjectFormatCache calls.