[parrot/parrot] 3dc39a: install inst_libparrot.$VER.$SOEXT

[GitHub]

  Branch: refs/heads/smoke-me/inst_libparrot-gh1213
  Home:   https://github.com/parrot/parrot
  Commit: 3dc39a2cc6ede2868d3662c72751f691bcc01926
      https://github.com/parrot/parrot/commit/3dc39a2cc6ede2868d3662c72751f691bcc01926
  Author: Reini Urban <rurban at cpanel.net>
  Date:   2016-02-16 (Tue, 16 Feb 2016)

  Changed paths:
    M lib/Parrot/Install.pm
    M tools/dev/install_files.pl

  Log Message:
  -----------
  install inst_libparrot.$VER.$SOEXT

over libparrot.$VER.$SOEXT, if it exists.
Fixes GH #1213
inst_libparrot has the final -install_name on darwin,
libparrot not.

broken with 7.11.0 and 8.1.0 for darwin binary builds only.

Also fixes the broken install_files --dry-run flag