Fix possible crash
Improve null pointer check in avatarlistbox.
Use all supported encoding while accesing http.
Using minimal step in setting slider values.
Set correct step in sliders.
Improve visible check in widgets draw code.
Improve isVisible usage.
Remove duplicate code from minimap.
Remove duplicate code from theme.
Fix close dropdowns on item selection.
Change default update type to "normal".
Add steam link in news page for player who run game more than 10 times.
add profiler label into gui.
Move redraw flag from widgets into base widget.
Add to widgets resize event handler.

In this handler set redraw flag.
Add optimisation flag into make scripts.
Add support for OpenGL extension GL_GREMEDY_frame_terminator.

It allow show to debugger where is frame termination.
Add support for OpenGL extension GL_EXT_debug_label.
Add support for OpenGL extension GL_EXT_debug_marker.
Add support for OpenGL extension GL_GREMEDY_string_marker.