ggragged 0.2.0

New features

• Facets gain a strips parameter to control how strips are drawn between panels.
• Facets gain an axes parameter to control how axes are drawn between panels.
• Facets gain an align parameter to control how panels are positioned within rows/columns.
• Added a vignette showing examples of usage in broader context.

Bug fixes

• Fixed an issue that caused some axes to be rendered incorrectly when using
  free scales with coord_flip() (#2).
• Fixed an issue that caused the package to fail to build (with an "argument is
  missing" error message) when an older version of ggplot2 was installed.