Use String subclass in model#cmd

Will allow convenience methods such as

cmd :all do |cfg|
  cfg.pop.shift
end

instead of:

cmd :all do |cfg|
  cfg.each_line.to_a[1..-2].join
end

And what ever convenience configs we come up with

1 files changed, 1 insertions, 0 deletions

diff --git a/lib/oxidized/core.rb b/lib/oxidized/core.rb
index 3c728b6..b4f5612 100644
--- a/lib/oxidized/core.rb
+++ b/lib/oxidized/core.rb
@@ -1,5 +1,6 @@
 module Oxidized
   require 'oxidized/log'
+  require 'oxidized/string'
   require 'oxidized/config'
   require 'oxidized/worker'
   require 'oxidized/nodes'