qd-io.lisp:

o Get rid of the #q reader that returns an internal %qd-real.

qd-methods.lisp:
o QPHASE was returning the wrong kind of object for positive values.
o Replace use of #q0 with the construction of a qd-real 0.

qd-const.lisp:
o Replace all uses of #q with #.(qd-from-string ...).