Change SDK/DartEditor versioning scheme to semantic versions.

dart/editor/build/build.py

Index: dart/editor/build/build.py
diff --git a/dart/editor/build/build.py b/dart/editor/build/build.py
index a2d1de6905d30901dd1f69ee9c382589bc5d5798..7bd88fb29c9c0f1bc8b6d14554622466bb172ff2 100755
--- a/dart/editor/build/build.py
+++ b/dart/editor/build/build.py
@@ -211,6 +211,9 @@ class AntWrapper(object):
       args.extend(extra_args)
     args.append('-Dbuild.local.build=false')
     args.append('-Dbuild.channel=' + CHANNEL)
+    args.append('-Ddart.version.full=' + utils.GetVersion())
+    args.append('-Dbuild.version.qualifier=' +
+        utils.GetEclipseVersionQualifier())
 
     extra_args = os.environ.get('ANT_EXTRA_ARGS')
     if extra_args is not None: