Squashed 'files/external/vivid-planet-munin-php-apc/' content from commit b5593b7

git-subtree-dir: files/external/vivid-planet-munin-php-apc
git-subtree-split: b5593b70e42ace0c5d678fff6cab83f1d0b49260
Merge commit '571c1299c2d4b44126760a1892dc540ee1b20438' as 'files/external/vivid-planet-munin-php-apc'
added vivid-planet apc munin plugin