Tweak 1.28 order in CHANGES.md

Author: pjcozzi

CHANGES.md

@@ -9,9 +9,9 @@ Change Log
    * Changed depth testing from `LESS` to `LEQUAL`, allowing label glyphs of equal depths to overlap.
    * Label glyph positions have been adjusted and corrected.
    * `TextureAtlas.borderWidthInPixels` has always been applied to the upper and right edges of each internal texture, but is now also applied to the bottom and left edges of the entire TextureAtlas, guaranteeing borders on all sides regardless of position within the atlas.
+* Fall back to packing floats into an unsigned byte texture when floating point textures are unsupported. [#4563](https://github.com/AnalyticalGraphicsInc/cesium/issues/4563)
 * Added support for saving html and css in GitHub Gists. [#4125](https://github.com/AnalyticalGraphicsInc/cesium/issues/4125)
 * Fixed `Cartographic.fromCartesian` when the cartesian is not on the ellipsoid surface. [#4611](https://github.com/AnalyticalGraphicsInc/cesium/issues/4611)
-* Fall back to packing floats into an unsigned byte texture when floating point textures are unsupported. [#4563](https://github.com/AnalyticalGraphicsInc/cesium/issues/4563)
 
 ### 1.27 - 2016-11-01
 * Deprecated