more consitency as to what is the base.env
can now easily pull calls from various unitizer objects
moved deparseCalls so target class is defined

had placed the funs before setClass('unitizerBrowseSubSection')...
Changed passed tests to be kept with 'N'

This simplified a lot of other things because it meant we could
keep the default action as 'N' and ensure that passed tests
would be kept with that default action.  Not completely ideal
as it could get a little confusing with the concept that 'Y'
copies stuff to the store, but it actually is self consistent
untrace library, etc. in case parsed file empty
Merge branch 'unitizecore' into development

This refactors 'unitize' so that we can re-use the code in order to
implement 'review' while re-using all the existing browsing infra
structure.