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

misc/fonts/README.txt

@@ -119,8 +119,8 @@ Mind the fact that some graphics drivers have texture size limitation.
 If you are building a PC application, mind the fact that your users may use hardware with lower limitations than yours.
 Some solutions:
 
- - 1) Reduce glyphs ranges by calculating them from source localization data. You can use ImFont::GlyphRangesBuilder for this purpose,
-   this will be the biggest win. 
+ - 1) Reduce glyphs ranges by calculating them from source localization data. 
+   You can use ImFontGlyphRangesBuilder for this purpose, this will be the biggest win!
  - 2) You may reduce oversampling, e.g. config.OversampleH = config.OversampleV = 1, this will largely reduce your texture size.
  - 3) Set io.Fonts.TexDesiredWidth to specify a texture width to minimize texture height (see comment in ImFontAtlas::Build function).
  - 4) Set io.Fonts.Flags |= ImFontAtlasFlags_NoPowerOfTwoHeight; to disable rounding the texture height to the next power of two.
@@ -177,11 +177,11 @@ Also note that correct sRGB space blending will have an important effect on your
  BUILDING CUSTOM GLYPH RANGES
 ---------------------------------------
 
-You can use the ImFontAtlas::GlyphRangesBuilder helper to create glyph ranges based on text input.
+You can use the ImFontGlyphRangesBuilder helper to create glyph ranges based on text input.
 For example: for a game where your script is known, if you can feed your entire script to it and only build the characters the game needs. 
 
   ImVector<ImWchar> ranges;
-  ImFontAtlas::GlyphRangesBuilder builder;
+  ImFontGlyphRangesBuilder builder;
   builder.AddText("Hello world");                        // Add a string (here "Hello world" contains 7 unique characters)
   builder.AddChar(0x7262);                               // Add a specific character
   builder.AddRanges(io.Fonts->GetGlyphRangesJapanese()); // Add one of the default ranges