overshiny 0.2.0

• Simplified use of overlay dropdown menus. This now works in a different way than it did before, so this is a breaking change. See the documentation for overlayServer() and the vignettes for details.
• Introduced a new function, snapGrid(), to handle the more obvious use case for the snap argument to overlayServer().
• Added rangeHeading() and dateHeading() for dropdown menu headings.
• Added a new vignette on infectious disease modelling with overlays.

overshiny 0.1.1

• useOverlay() is now called automatically if you use overlayPlotOutput().
• Added remargin() function for adjusting ggplot2 plot margins.
• Expanded the introductory vignette.

overshiny 0.1.0

• Initial CRAN submission.