fix searching strings in array in zsh, fix #2669
add ruby 2.0.0-p481
Merge pull request #2853 from polishgeeks/ruby_2_0_0_p481

add ruby 2.0.0-p481
ruby 1.9.3-p547 support
Merge pull request #2856 from hone/master

ruby 1.9.3-p547 support
added patches for some updated ruby versions
Merge pull request #2858 from skaes/various-patch-updates

added patches for some updated ruby versions