OpenSystemsDevelopment / qpdf

Create an alternative to getJSON to allow an object handle to be written as JSON without the overhead of creating a JSON object.

Using search and replace.

Add new method QPDF::newReserved()

Add new convenience class QPDFObjGen::Guard

Also, name the type QPDFValue::Description.

Avoid dynamic casting.

Exclude uninitialized, destroyed and reserved objects.