tweak fold/column colors and settings

Make things a little tighter, and clearer (to me at least)
drop any perlbrew paths from @INC; add local::lib

It's dangerous to use perlbrew-based paths, as these may include binary
modules compiled for an entirely different Perl, not the Perl vim is compiled
against and links with (typically system perl, unless you've done something
odd).

We also setup a local::lib under perl5/, for our use; pure-Perl only.
add Growl::GNTP
ignore cpan toolchain metainfo in our little local::lib dir
wip! updated ctags/perl
local: App::EditorTools
localperl: run perl w/system and vim's local::lib
be a little more paranoid with our @INC...  though I suspect this needs tweaking
...and add the editortools plugin
wip!
disable fold columns for vitra, too
move fold settings up under "appearance"