Popups: fixed child windows within popups vs handling of sub menus. Added examples.

Popups: identifying popups by their id to avoid conflict when recycling popup durnig same same (CloseCurrentPopup followed by Open+Begin)

Merge remote-tracking branch 'origin' into 2015-05-menus

Tweaks, comments around ImFontAtlas ...

Removed unsigned int from API

Merge remote-tracking branch 'origin' into 2015-05-menus

Cleanup, merged duplicate code into a function

WIP Menus: sub-menu arrow alignment take account of extension by other widgets (#126)

Merge remote-tracking branch 'origin' into 2015-05-menus ...

Conflicts:
	imgui.h

WIP Menus: minor cleanup using a ImGuiSimpleColumns helper type (#126)

WIP intermediary branch commit for menus, submenus (some large inconsistencies remaining in API + need cleanup) (#126) ...

May remove the ImGuiWindowFlags_Menu alltogether

Default item width for AlwaysAutoResize windows expressed as a factor of font height

Added ImGuiCol_TextDisabled

Tweaks

Merge pull request #218 from paperManu/inputNFlags ...

InputFloat2/3/4, InputInt2/3/4: Added extra_flags parameter.

Renamed flags to extra_flags in last commit

BeginPopup() API had to be changed! :( Proper support for stacked popups, leading into menus (wip #126)

Input text flags added to InputFloatN and InputIntN

Merge pull request #217 from Pagghiu/bugfix ...

Example fix PopStyleVar on Vertical Slider to avoid assertion

Example fix PopStyleVar on Vertical Slider to avoid assertion ...

Adding an explicit ImGui::PopStyleVar to avoid assertion in
CheckStacksSize

InputText: make sure Ctrl+V has ONLY the control key pressed (follow up to #214) + tidying

Untabifiy

Merge pull request #214 from ghassanpl/upstream ...

InputText(): make sure letter-key shortcuts have ONLY the control key pressed

Fixed implicit conversion of NULL constant to bool (fix #216)

* make sure letter-key shortcuts have ONLY the control key pressed (fixes bug for AltGr->Ctrl+Alt on windows)

Shutdown() test for g.IO.Fonts not being NULL to allow workarounds in case of using multiple contexts #207

Added style.ScrollbarRounding #212

Merge remote-tracking branch 'origin' into 2015-05-menus

Assert on modifiers stack size mismatch between Begni()/End() pairs #204 ...

Experimenting with this. It's helpful but not happy with the idea of
ImGui asserting on that sort of user error.

Examples: test for tooltip over popup.

Allow stacking popups, not really useful yet (wip #126)