Added compat/glutbitmap.h to support glutBitmapString / glutBitmapLength when GLUT isn't available.
Some tidying of widgets.cpp. Increase size of widgets when HAVE_GLES defined.
Android: Default to hide status bar.
Android: preliminary support for virtual keyboard. Show / hide using back button for now.
android: Added compat/glconsole.h to (rather hackily) support GLConsole, forcing it to use Pangolins fonts and ignoring glut calls.