Less 'make' chatter for unidata

Less 'make' chatter for unidata

* unidata/Makefile.in (AM_DEFAULT_VERBOSITY, AM_V_GEN, am__v_GEN_)
(am__v_GEN_0, am__v_GEN_1, AM_V_at, am__v_at_, am__v_at_0, am__v_at_1):
New macros, from ../src/Makefile.in.
(${top_srcdir}/src/macuvs.h, %.elc, unidata.txt)
(${unidir}/charprop.el, unifiles): Use them.
(PHONY_EXTRAS): New macro.
(.PHONY, ${unidir}/charprop.el): Use it.
(FORCE): Remove; all uses replaced by PHONY_EXTRAS manipulation.
(${unidir}/charprop.el, extraclean):
Use 'make' conditionals rather than shell.