TODO

2/9/2012
* [TESTS] Add tests for _collision_sides()

2/7/2012
* [BUG] Now that we are "nicely" choosing the max font size with
  _max_font_size(), words aren't completely fitting within the bounds of the
  image. We need to somehow scale the words down to fill the total area we
  have to play with.

2/6/2012
* [FEATURE] Add padding around edges of image so words don't border up against
  it. [done]
* [FEATURE] Add test for 'border_padding' option [done]
* [FEATURE] Need to alter number of words shown on an image based on the image
	size and bounds. We can't fit 70 words in a 200x200
* [OPTIMIZATION] Run time of cloud() increases as the image size increases.  In
  fact the run time of M::P::TheodorusSpiral::n_to_xy() doubles when the image
  doubles. This is because M::P::TheodorusSpiral has to cover a much larger
  area and thus gets more iterations (calls). A 500x500 image makes 6709
  calls n_to_xy(), a 1000x1000 image makes 22,987 calls, and a 2000x2000 image
  makes 44,261 calls.
  - Can't fix this! Internally n_to_xy() has to run over each iteration.
    Increasing our incrementer just makes the internals spin MILLIONS of times
    to catch up, rather than just keeping in line with the calls we make. It
    actually takes LONGER to call it less, if we increment by more than 1.

2/3/2012
* Add untaint options to validate() for file and dir paths
* Put test scripts in proper order. Util methods needs to be
  tested before the methods they're used in.
* Add an optional "color_guard" option (exact name to be decided)
  to new() that will prevent colors/hues from being used that will
  be very close to the background color and cause it to look bad.
  Like right now with the background of 40,40,40 dark blues and
  purples don't look good.

2/2/2012
* A words' font size needs to be scaled to fit inside the
  image (long words) [done]

1/30/2012
* Allow font_path to take a list of paths

1/27/2012
* Use hierarchical bounding boxes for word collisions
* Allow a Color::Scheme object to be passed in for colors