libdeng2|Rectangle: Added shrunk() and an inequality operator
libdeng2|Widget: Added widget deinitialization method
libgui|Font: Rasterizing a line of text onto an image
libgui: Cleanup
libgui|GLState: Method for marking native GL state as undefined

Utility for integrating with the old GL code.
libgui|GLBuffer: Utility for concatenating triangle strips
Client|Default Style: Added monospace font, widget-specific fonts
Client|GuiRootWidget: 2D projection matrix utility, widget deinit
Client|GuiWidget: GL init/deinit mechanism, checking for widget movement
Client: Added GLTextComposer, utility for drawing GL text
Client: Added FontLineWrapping, utility for wrapping text
Client|Widgets: Added several widgets (in various states of development)

- LabelWidget: inert widget that shows text and/or an image
- ButtonWidget: clickable button
- LineEditWidget: dynamically sized multi-line text editor
- LogWidget: scrollable log entry list
- TaskBarWidget: the primary UI element of the client's GUI