0.8.0 - Better way to load legacy packages, dojo 1.8/1.9 is "official", more docs and bug fixes

• Adds new curl/loader/legacy module loader that provides similar
  functionality to RequireJS's "shim config".
• Adds dontAddFileExt config option functionality to js! plugin and
  curl/loader/legacy module loader.
• Fixes configuration context mixups. Modules will get their package's
  config unless they are loaded explicitly via a plugin and that
  plugin has a custom configuration.
• Paths can now be objects like packages and can have all of the same
  properties, except main, i.e. location (or path), config, name.
• Fixes an issue in node on windows wherein C: was seen as a web protocol.
• Updates READMEs in the plugin and loader folders.
• Drops dojo 1.6 compatibility in the "kitchen sink" distribution.
• Adds new dojo 1.8 distribution.