CRAN version 0.3.2

states 0.3.2

Several small fixes.

Bug fixes

• Manually add a "states-packge" alias for the package doc since roxygen2 does not do this by default anymore.
• Switch from the deprecated ggplot2::aes_string() to ggplot2::aes() + the .data pronoun in plot_missing().
• Fix a dplyr join warning in state_panel() due to the new "relationship" argument.
• Update old URLs in README and other documentation.