perlmagick 6.88: new recipe

New formula for PerlMagick, a Perl interface for ImageMagick.
Removing redundant comments

Removing commented config options that are needed for compilation
updating perlmagick with recommendations

making recommended changes
perlmagick.rb update: cleaning freetype

Updated freetype include directory to reference X11 first, then Homebrew
Editing the caveats

So that the version is automatically defined.  I had to think of an alternate way to get the version because the linking to /usr/local doesn't happen until the clean up stage which is after the caveats.
Cleaning up "freetype" var conditional

Easier to read
Update perlmagick.rb
Changing PerlMagick Perl lib version directory

To manual definition in the caveat
perlmagick: add 6.88 bottle.