Allegro 5 example: removed public domain mark, MIT as the rest, with @bggd approval

Version number 1.43 WIP ...

Bits

Disable warnings, undo f4aae6b (#265 #266)

Merge pull request #266 from Extrawurst/patch-4 ...

Fix minor clang-x64 warnings (fixes #265)

fix minor clang-x64 warnings ...

fixes #265

New demo binaries

Version number 1.42

Allegro 5 example: fixed uv coordinate of non-default texture.

Allegro 5 example: handling of hardware and software mouse cursor rendering.

Allegro 5 example: fixed key modifiers, keyboard input, clipping, added pagedown/pageup.

Allegro 5 example: formatting, match other example structure, fixed mouse buttons.

Allegro 5 example: main.cpp matches other examples. added window title.

SDL example: tweaks (#233 #226)

Allegro5 example: added example from https://github.com/bggd/a5imgui_example

SDL example: hasty readme.

SDL example: more cleanup to match other examples (#233 #226)

SDL example: further cleanup to match other examples (#233 #226)

SDL example: moved event loop to main.cpp , adding page up/page down. (#226)

SDL example: renamed folder, added in README

Allowing DeltaTime==0.0f to not assert

SDL example: tweaks and fixes.

Merge branch 'SampleSDL2' of https://github.com/CedricGuillemet/imgui into CedricGuillemet-SampleSDL2

Merge branch 'ios_example_merge'

iOS Example: Optimise PNG files size

iOS example: shallow tweaks and fixes (untested)

iOS example working based on modified OpenGL3 example + Synergy

Fixed ListBoxHeader() not honoring negative sizes the same way as BeginChild() or BeginChildFrame() (#263)

ImVector<> access to Size/Capacity/Data (#262)

Removed the majority of size_t from the code. ImVector<> now uses int. (#262) ...

May trigger new compilation warnings?

Fixed minor zealous Clang warning (demo code intentionally uses strdup() to be copiable)