7990 Improve performance of Locale.toString (cla: yes)

7991 Select MPL instead of LGPL (cla: yes)

7993 Fix two typos in embedder.h (cla: yes)

7997 Fix spelling errors in dartdocs (cla: yes)

7999 Buffer lifecycle in WindowData (cla: yes)

8000 Android Embedding PR 14: Almost done with FlutterFragment. (cla: yes)

8001 Fix incorrect transformation matrix (cla: yes)

8005 A11y callback (cla: yes)

8006 Guard against using Android API not defined in API level 16 & 17 (cla: yes)

8007 Add overloads for lookup that lets you specify a bundle (cla: yes)