- Added `tab_selected` signal. Which emits a signal by selecting any tab, if current tab is selected again.
- Added `get_previous_tab()`. Which returns the previous shown tab. **Note:** only `tab_changed` can modify previous tab index.
- Add documentation for the added function and signals. Fix a typo too.
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
