directory structure change to work with glide

glide has its own requirements. My previous workaround caused me some
code checkin errors. Need to fix this.

weed/util/parse.go

@@ -0,0 +1,26 @@
+package util
+
+import (
+	"strconv"
+)
+
+func ParseInt(text string, defaultValue int) int {
+	count, parseError := strconv.ParseInt(text, 10, 64)
+	if parseError != nil {
+		if len(text) > 0 {
+			return 0
+		}
+		return defaultValue
+	}
+	return int(count)
+}
+func ParseUint64(text string, defaultValue uint64) uint64 {
+	count, parseError := strconv.ParseUint(text, 10, 64)
+	if parseError != nil {
+		if len(text) > 0 {
+			return 0
+		}
+		return defaultValue
+	}
+	return count
+}