Merge "Add a move feature to DocumentsUI."

diff --cc packages/DocumentsUI/res/values/strings.xml
Simple merge

diff --cc packages/DocumentsUI/src/com/android/documentsui/BaseActivity.java
Simple merge

diff --cc packages/DocumentsUI/src/com/android/documentsui/DirectoryFragment.java
Simple merge

diff --cc packages/DocumentsUI/src/com/android/documentsui/DocumentsActivity.java
Simple merge

diff --cc packages/DocumentsUI/src/com/android/documentsui/StandaloneActivity.java
Simple merge