Fixing bugs related to starting in All Apps mode

- fixed bug where Workspace.shrinkToBottom() was 
    not always called in showAllApps
- added logic to defer call to 
    Workspace.shrinkToBottom() after first layout
    call (necessary because shrinkToBottom relies
    on getWidth() working properly)
- added ability to Workspace.shrinkToBottom()
    without animation

Change-Id: I966141a60b6b014cf97e83b4d45725b41b16e55d
2 files changed