Shorten date/time info in event info to display in one line.

1) Don't show the year if it is the current year, 2) shorten day/month names for multiday events, 3) display "Today" or "Tomorrow" when possible, 4) use short timezone string. (b/6285801)

Change-Id: Idc4646c15f90ea6803cdff7cde985550501f62cf
diff --git a/res/layout/event_info_dialog.xml b/res/layout/event_info_dialog.xml
index 7863378..4ac6400 100644
--- a/res/layout/event_info_dialog.xml
+++ b/res/layout/event_info_dialog.xml
@@ -118,7 +118,7 @@
 
                 <!-- WHEN -->
                 <TextView
-                    android:id="@+id/when_date"
+                    android:id="@+id/when_datetime"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:textSize="18sp"
@@ -129,7 +129,7 @@
                     style="?android:attr/textAppearanceLarge" />
 
                 <TextView
-                    android:id="@+id/when_time"
+                    android:id="@+id/when_repeat"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:textSize="18sp"