Prepare for dartdoc 0.28.1 (#1920)

* Prepare for dartdoc 0.28.1

* Add the upcoming fix to three-pane scrolling to the changelog

Author: jcollins-g

Diff for: CHANGELOG.md

@@ -1,3 +1,23 @@
+## 0.28.1
+* Reenable three-pane scrolling in Chrome 72 (#1922, #1921)
+* A new version of the highlightjs pack supports syntax highlighting for
+  SCSS. (#1906, #1907)
+* Allow manually-specified links to source code, appearing as a small icon
+  near the top of each element's page (#1913, #1454, #1892)
+* Dartdoc can be used just to generate warnings by passing --no-generate-docs
+  (#1909, #1537).
+* Dartdoc's default CSS now more closely resembles dartlang.org, with some
+  miscellaneous alignment tweaks, Roboto font, and use of `:hover` to highlight
+  links (#1916, #1372)
+* Viewport parameters for mobile now prevent "stuck page" syndrome (#1916,
+  #1911).  Overscroll is now permitted for mobile.
+* Fix a problem where we don't render greater than symbols in the header
+  for Chrome 72 (#1919, #1918)
+* Dartdoc now remembers scroll positions for all three columns while
+  navigating (#1917, #1288, #1372, #779, #1870)
+* Update analyzer package to 0.35.0 and several internal test/coverage
+  infrastructure fixes.
+
 ## 0.28.0
 * Fix a crash when a Dart library doesn't have the .dart suffix (#1897)
 * Fix a crash when a Dart file is loaded with an unresolvable

Diff for: dartdoc_options.yaml

@@ -1,4 +1,4 @@
 dartdoc:
   linkToSource:
     root: '.'
-    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v0.28.0/%f%#L%l%'
+    uriTemplate: 'https://github.com/dart-lang/dartdoc/blob/v0.28.1/%f%#L%l%'

Diff for: lib/src/version.dart

@@ -1,2 +1,2 @@
 // Generated code. Do not modify.
-const packageVersion = '0.28.0';
+const packageVersion = '0.28.1';

Diff for: pubspec.yaml

@@ -1,14 +1,14 @@
 name: dartdoc
 # Also update the `version` field in lib/dartdoc.dart.
-version: 0.28.0
+version: 0.28.1
 author: Dart Team <[email protected]>
 description: A documentation generator for Dart.
 homepage: https://github.com/dart-lang/dartdoc
 environment:
   sdk: '>=2.1.0-dev.9.4 <3.0.0'
 
 dependencies:
-  analyzer: ^0.34.1
+  analyzer: ^0.35.0
   args: '>=1.4.1 <2.0.0'
   collection: ^1.2.0
   crypto: ^2.0.6