Changelog for blaze-html-0.7.0.3

- 0.7.0.3 * Dependency bump to allow `text-1.2` - 0.7.0.2 * Bump QuickCheck dependency to 2.7 - 0.7.0.1 * Fix incorrect blaze-markup dependency in tests - 0.7.0.0 * Bump blaze-markup so we get the (!?) operator for conditionally setting attributes