Add AverageCoverage to graph construction(hadoop) and make graphviz more pretty
diff --git a/genomix/genomix-hadoop/data/webmap/SplitOnce.txt b/genomix/genomix-hadoop/data/webmap/SplitOnce.txt
new file mode 100644
index 0000000..d8e2b7e
--- /dev/null
+++ b/genomix/genomix-hadoop/data/webmap/SplitOnce.txt
@@ -0,0 +1,2 @@
+1	AATAG
+2	GCATA