Fix for #2953 - Rename old default theme to itmill5

svn changeset:7826/svn branch:6.0

WebContent/VAADIN/themes/contacts/styles.css

@@ -1,4 +1,4 @@
- @import url(../default/styles.css);
+ @import url(../itmill5/styles.css);
 
 /* Add some padding to the tree */
 .v-tree {

WebContent/VAADIN/themes/coverflow/styles.css

@@ -1,4 +1,4 @@
-@import url(../default/styles.css);
+@import url(../itmill5/styles.css);
 
 .v-app, body.v-generated-body {
 	background-color: black;

WebContent/VAADIN/themes/example/styles.css

@@ -1,4 +1,4 @@
-@import url(../default/styles.css);
+@import url(../itmill5/styles.css);
 
 .v-generated-body {
 	/* full height layout does not need scrollable body;