Merge branch 'master' into navigation

Demo: Console: Fixed incorrect positioning which was hidden by a minor scroll issue (this would affect people who copied the console code as is)

Scrolling: SetScrollFromPosY() tweak to match change in a0d53fe with similar desirable jump/discontinuity at each limit to skip the (ItemSpacing>WindowPadding) difference (followup to 0e5b64e, #150)

Style, Scrolling: Fixed padding and scrolling asymetry where lower/right sides of a window wouldn't use WindowPadding properly + causing minor scrolling glitches.

Demo: Layout: Removed unnecessary BeginChild/EndChild calls

Internals: Removed unnecessary duplicate scrolling code + added extra infos to Metrics window.

Settings: Internals: Renaming.

Settings: Internals: Simplifying code a bit. Creating Settings structure during first save. Windows where ImGuiWindowFlags_NoSavedSettings was late toggled will save settings correctly. (#1000)

Settings: Internals: Added FindSettingsHandler()

Settings: Internals: Exposed FindWindowSettings(). Simplified some code.

Settings: Internals: Renamed ImGuiSettingsWindow to ImGuiWindowSettings.

Merge branch 'master' into navigation

Build fix

Settings: Import old style .ini file

Examples: DirectX9: Call EndFrame(), fix for assert added in 9a44d44

Settings: Make ImGuiWindow settings always first in the list.

ImVector: Added ImVector::push_front helper.

Settings: Initializing ImGuiSettingsWindow so external users don't end up with uncleared data. Exposed MarkIniSettingsDirty() in imgui_internal.h

Examples: DirectX9: Handle loss of D3D9 device (D3DERR_DEVICELOST). (#1464)

Settings: basic refactor so that additional data structures can be loaded/saved. Parser/saver is still the minimum viable poor-man parsing.

Settings: Internal renaming of structure and fields names.

Settings: Basic internal refactor to have functions for saving from/to memory (not exposed)

ImGuiTextBuffer: Renamed append() helper to appendf(), appendv() to appendfv(). Added reserve().

Fixed DroidSans font link (#1460)

ImGuiStorage: Added BuildSortByKey() helper to rebuild storage from stratch.

Nav: Do not clear last navigation id stored in a hidden child window. (#787)

Nav: Exposed NavInitWindow() in imgui_internal (#787)

Merge branch 'master' into navigation ...

# Conflicts:
#	imgui.cpp

Sisyphus says: tweaked comments about not using old-style OpenGL examples (#1459, #1394 etc.)

Sisyphus says: tweaked comments about not using old-style OpenGL examples (#1459, #1394 etc.)