Release 1.0.27

• Implemented OpenGL drawing surface supporf for X11 protocol. Can be disabled
  by setting LSP_WS_LIB_GLXSURFACE=off environment variable.
• Improved size estimation algorithm for tk::Label widget.
• Added inactive state and colors for following widgets:
  • tk::Button;
  • tk::CheckBox;
  • tk::ComboBox;
  • tk::Edit;
  • tk::Fader;
  • tk::FileButton;
  • tk::Fraction;
  • tk::Indicator;
  • tk::Knob;
  • tk::Led;
  • tk::ListBox;
  • tk::ListBoxItem;
  • tk::MenuItem;
  • tk::ProgressBar;
  • tk::RadioButton;
  • tk::ScrollBar;
  • tk::Tab;
  • tk::TabItem.
• Removed tk::Switch widget as being outdated.
• Optimized surface drawing and sizing algorithm.
• Rendering optimizations in widget containers.
• Removed outdated RackEars widget.
• Updated widget drawing code to match new interface of ws::IGradient.
• Updated module versions in dependencies.