fonts/binary_to_compress: display error message when failing to open file + misc comments.

Doc: Tweak and extra mention of AddCustomRectFontGlyph + made the example register two rectangles.

Disable -Wpragmas warning in GCC to avoid relying on version checks, as unusual/forks/mods don't appear to always have same warning<>version. (#2618) ...

+ Fix version number in imgui.h

Version 1.72 WIP

Version 1.71 + comments

Readme, comments, dear imgui prefixes

Fonts: Added some details about using custom colorful icons.

FreeType: Added RasterizerFlags::Monochrome flag to disable font anti-aliasing. (#2545) Combine with RasterizerFlags::MonoHinting for best results.

Version 1.71 WIP + fixed minor typo

Version 1.70

Misc: Added IM_MALLOC/IM_FREE macros mimicking IM_NEW/IM_DELETE so user doesn't need to revert to using the ImGui::MemAlloc()/MemFree() calls directly.

Examples: DirectX9: Fixed erroneous assert in ImGui_ImplDX9_InvalidateDeviceObjects(). FreeType: Fixed suggested code to not require an initial build call.. (#2454)

Version 1.70 WIP

Version 1.69, comments, typos

Demo: InputText: Demonstrating use of ImGuiInputTextFlags_CallbackResize. (#2006, #1443, #1008).

Added InputTextWithHint() (#2400) ...

Squashed commit of the following:

commit 1970d84
Author: Lucas Lazare <lazarelucas@yahoo.fr>
Date:   Tue Mar 5 12:20:39 2019 -0500

    Removing sneaky tabulations #2 (why, editor T-T)

    I should update my settings, I guess

commit 219bdfc
Author: Lucas Lazare <lazarelucas@yahoo.fr>
Date:   Tue Mar 5 12:17:27 2019 -0500

    Removing useless check introduced in b0d172

commit 8afd7a2
Author: Lucas Lazare <lazarelucas@yahoo.fr>
Date:   Tue Mar 5 11:49:24 2019 -0500

    Removing sneaky tabulations

commit 8e04908
Author: Lucas Lazare <lazarelucas@yahoo.fr>
Date:   Tue Mar 5 11:45:13 2019 -0500

    Moving InputTextHinted code to InputTextEx

commit b0d1723
Author: Lucas Lazare <lazarelucas@yahoo.fr>
Date:   Tue Mar 5 00:23:02 2019 -0500

    C++11 to C++98

commit 9afeae3
Author: Lucas Lazare <lazarelucas@yahoo.fr>
Date:   Mon Mar 4 23:43:28 2019 -0500

    Added InputTextHinted

Font: Fixed assert when specifying duplicate/overlapping ranges within a same font. (#2353, #2233)

imgui_freeetype: Updated suggested test code.

Examples: Extracted gamepad code into ImGui_ImplGlfw_UpdateGamepads(). Renamed matching Win32 function for consistency. ...

Added more link to nothing's oversample document. Spacing bits.

Using IM_UNUSED() macro.

Fixed using imgui_freetype.cpp in unity builds. (#2302)

Removed trailing spaces from text files. (#2038, #2299)

Removed trailing spaces (#2038, #2299)

FreeType: Minor tweaks previous commit (#2285)

By default ImGuiFreeType will use ImGui::MemAlloc()/MemFree(). ...

ImGuiFreeType::SetAllocatorFunctions() can be used to specify custom allocator.

imgui_freetype: Fixed redundant FT_Load_Glyph() calls, unused parameters, and compilation warning/error. (#2270)

ImFontAtlas: Fixed allocating for last bit (would only affect is that last codepoint is a multiple of 32). (#2270)

ImFontAtlas: Rewrote FreeType based builder. ...

- Fixed abnormally high atlas height. (#618)
- Fixed support for any values of TexGlyphPadding (not just only 1). (#618)
- Atlas width is now properly based on total surface rather than glyph count (unless overridden with TexDesiredWidth). (#618)
- Fixed atlas builder so missing glyphs won't influence the atlas texture width. (#2233, #618)
- Fixed atlas builder so duplicate glyphs (when merging fonts) won't be included in the rasterized atlas. (#618)

imgui_freetype: Minor tweaks and comments.

Renamed ImFont::GlyphRangesBuilder to ImFontGlyphRangesBuilder. Keep redirection typedef (will obsolete).