Makefile updates after include_dynpmc_makefile merged to trunk. Watch out before updating.

[Daniel Arbelo]

Fellow parroteers,
    In r46126 the include_dynpmc_makefile was merged to trunk, this
branch alters the parrot build to avoid 'recursive makes' in the
building of our dynpmcs. The old stand alone Makefile in src/dynpmc
has been replaced with two 'make includes' stored in that same
directory.
    To minimize trouble while updating it is recomended that you run a
'make realclean' before doing an svn up, or at the risk of having one
or two leftover files from before the changes, to run Configure.pl
immediately after updating your source tree.
    Also watch out for parallel build issues, I've done as much
testing as I can, but people on multiprocessor machines might still
run into trouble. Let me know about (or even better fix) any issues
you might encounter on this front.
    Keeping that in mind, you may now return to your scheduled hacking.

Daniel Arbelo Arrocha.