[Nitro] OG Problem Resolved - Now Can't Find XML/XSLT

[Dan Yoder]

I set the create_schema variable to true and that could care of the 
last error I reported. (I am still getting the infinite loop when the 
database itself isn't created first.)

Now I'm getting:
  INFO: Connecting to database 'blog' using the 'mysql' adapter.
DEBUG: Og auto manages the following classes:
DEBUG: [BlogEntry, Category, Comment]
  INFO: Created table 'og_blogentry'.
  INFO: Created table 'og_category'.
  INFO: Created table 'og_comment'.
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in 
`require__': No such file to load -- xml/xslt (LoadError)
         from 
/usr/local/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:18:in 
`require'
         from /usr/local/lib/ruby/site_ruby/1.8/nitro/shaders.rb:186:in 
`initialize'
         from run.rb:29:in `new'
         from run.rb:29