Copy changes to CHANGELOG.md from stable to bleeding-edge.

CHANGELOG.md

 ## 1.14.0
 
 ### Core library changes
 * `dart:convert`
   * `Base64Decoder.convert` now takes optional `start` and `end` parameters.
 
 * `dart:core`
   * Added `Uri.data` getter for `data:` URIs, and `UriData` class for the
     return type.
   * Added `growable` parameter to `List.filled` constructor.
 
 * `dart:math`
   * `Random` added a `secure` constructor returning a cryptographically secure
     random generator which reads from the entropy source provided by the
     embedder for every generated random value.
 
 * `dart:io`
   * `Platform` added an `isiOS` getter and `Platform.operatingSystem` may now
     return `ios`.
 
-## 1.13.0
+## 1.13.0 - 2015-11-18
 
 ### Core library changes
 * `dart:async`
   * `StreamController` added getters for `onListen`, `onPause`, and `onResume`
     with the corresponding new `typedef void ControllerCallback()`.
   * `StreamController` added a getter for `onCancel` with the corresponding
     new `typedef ControllerCancelCallback()`;
   * `StreamTransformer` instances created with `fromHandlers` with no
     `handleError` callback now forward stack traces along with errors to the
     resulting streams.
@@ skipping 102 matching lines @@
 
   * The heuristics for determining when `pub get` needs to be run before various
     commands have been improved. There should no longer be false positives when
     non-dependency sections of the pubspec have been modified.
 
 ## 1.12.0 - 2015-08-31
 
 ### Language changes
 
 * Null-aware operators
-    * `??`: if null operator. `expr1 ?? expr2` evaluates to `expr1` if not `null`, otherwise `expr2`.
-    * `??=`: null-aware assignment. `v ??= expr` causes `v` to be assigned `expr` only if `v` is `null`.
-    * `x?.p`: null-aware access. `x?.p` evaluates to `x.p` if `x` is not `null`, otherwise evaluates to `null`.
-    * `x?.m()`: null-aware method invocation. `x?.m()` invokes `m` only if `x` is not `null`.
+    * `??`: if null operator. `expr1 ?? expr2` evaluates to `expr1` if
+      not `null`, otherwise `expr2`.
+    * `??=`: null-aware assignment. `v ??= expr` causes `v` to be assigned
+      `expr` only if `v` is `null`.
+    * `x?.p`: null-aware access. `x?.p` evaluates to `x.p` if `x` is not
+      `null`, otherwise evaluates to `null`.
+    * `x?.m()`: null-aware method invocation. `x?.m()` invokes `m` only
+      if `x` is not `null`.
 
 ### Core library changes
 
 * `dart:async`
   * `StreamController` added setters for the `onListen`, `onPause`, `onResume`
     and `onCancel` callbacks.
 
 * `dart:convert`
   * `LineSplitter` added a `split` static method returning an `Iterable`.
 
@@ skipping 501 matching lines @@
     they will keep the Dart process alive until they time out. This fixes the
     handling of persistent connections. Previously, the client would shut down
     immediately after a request.
 
   * **Breaking change:** `HttpServer` no longer compresses all traffic by
     default. The new `autoCompress` property can be set to `true` to re-enable
     compression.
 
 * `dart:isolate`: `Isolate.spawnUri` added the optional `packageRoot` argument,
   which controls how it resolves `package:` URIs.