begun adding string constants for source properties

diff --git a/src/jalview/bin/Cache.java b/src/jalview/bin/Cache.java
index ec5ff08..acf1499 100755 (executable)
--- a/src/jalview/bin/Cache.java
+++ b/src/jalview/bin/Cache.java
@@ -106,6 +106,7 @@ public class Cache
    * property giving log4j level for Jalview Log
    */
   public static final String JALVIEWLOGLEVEL = "logs.Jalview.level";
+  public static final String DAS_LOCAL_SOURCE = "DAS_LOCAL_SOURCE";
 
   /**
    * Initialises the Jalview Application Log