allows tasks access to extra (unnamed) task arguments

[btaitelb]

Pros:

• This lets rake tasks use varargs-style parameters.
• This is useful for passing in lists, as well as handling string params containing commas.

Possible Issues:

• If a task is currently iterating through the args, and the task is called with additional arguments,
  then this could break an existing task. Calling the rake task with unnamed arguments was previously
  incorrect usage, however.
• If someone names their params like arg_001 then unnamed params will overwrite the value.
  Naming args like that, however, is pretty bad practice.

[mdesantis]

Does anyone have informations about this? It's very ugly rake cannot take commas in the arguments

[jimweirich]

The idea of var args to tasks is intriguing, but not with that ugly argument naming scheme. I would suggest enhancing TaskArguments with a 'values' method and use that to access a list of values (named or otherwise). Maybe some way of indicating that variable args are acceptable to the task.

[jimweirich]

There is a similar pull request open with an improved implementation (#150). I'm closing this request in favor of #150.