Internals: Columns: Some renaming, extracted code into GetColumnsID().

Docking: Internal: Added helper for automation to process docking at the mouse level.

Merge branch 'master' into docking ...

# Conflicts:
#	imgui.cpp
#	imgui_internal.h

Docking: Rename typo Autority -> Authority + Rename DockContextNewFrameUpdateDocking -> DockContextUpdateDocking.

Tests: Added hook/tweaks for imgui-test engine. + Fixed warnings.

Docking: Hold Shift to force disable docking. (#2109)

Tests: Added hook/tweaks for imgui-test engine. + Fixed warnings.

Internals, Docs: Added a bunch of clarification about ButtonBehavior in the form of a table (and to facilitate writing tests)

Merge branch 'master' into docking ...

# Conflicts:
#	imgui_demo.cpp

Internals: Merge minor things from range_select branch. Added ImGuiButtonFlags_NoHoveredOnNav. Added IsItemToggledSelected() - unused here. Renaming.

Merge branch 'master' into docking

Internals: Selectable: Added ImGuiSelectableFlags_AllowItemOverlap in imgui_internal.h (~ #684, #2341)

Merge branch 'master' into docking ...

# Conflicts:
#	examples/imgui_impl_dx9.cpp
#	examples/imgui_impl_opengl3.cpp

InputText: Made Shift+Tab consistently do nothing regardless of whether the back-end emits both char and keys or just keys. (#2467, #1336)

Docking: Fixed focus restore lagging by a frame when a tab stops being submitted. (#2109) Building on a little build of technical debt there, should transition toward a more general docking-agnostic system (#2304)

Viewport: Renamed member + added note about a Docking issue with restoring focus.

Docking: Disable SkipItems when directly/programmatically focused (possible generalization of code currently in BeginDocked which relies on tab bar interaction, will remove that code in next commit). (#2453, #2109)

Merge branch 'master' into docking ...

# Conflicts:
#	docs/CHANGELOG.txt
#	imgui.cpp

Internals: Renamed the ImGuiWindow HiddenFrameXXX fields to decorrelate them from resizing behavior, as those values are set by other logic.

Docking: Added ImGuiDockNodeFlags_NoTabBar (not exposed publicly). (#2423, #2109)

Docking: Internals: Moved CentralNode and HiddenTabBar state into LocalFlags for consistency. (#2423, #2109)

Docking: Separating SharedFlags vs LocalFlags in dock node so settings can be applied to individual nodes. Made _NoResize logic on single node applies as expected. (#2423, #2109)

Renamed ImGuiDockNodeFlags_Dockspace to ImGuiDockNodeFlags_DockSpace for consistency. DockBuilderCopyDockspace() to DockBuilderCopyDockSpace(). Made casing consistent elsewhere. (#2109)

Docking: Renamed ImGuiDockNodeFlags_PassthruDockspace to ImGuiDockNodeFlags_PassthruCentralNode. + Comments, shallow tweaks. (#2109)

Merge branch 'master' into docking ...

# Conflicts:
#	docs/CHANGELOG.txt
#	examples/imgui_impl_opengl3.cpp
#	imgui.cpp
#	imgui_internal.h

Comments, todo list, remove trailing spaces.

Version 1.70 WIP

Merge branch 'master' into docking ...

# Conflicts:
#	docs/CHANGELOG.txt
#	examples/example_win32_directx10/main.cpp
#	examples/example_win32_directx11/main.cpp
#	examples/example_win32_directx12/main.cpp
#	examples/example_win32_directx9/main.cpp

Version 1.69, comments, typos

TabBar: Reworked scrolling policy (when ImGuiTabBarFlags_FittingPolicyScroll is set) to teleport the view when aiming at a tab far away the visible section, and otherwise accelerate the scrolling speed to cap the scrolling time to 0.3 seconds.