changed int32 to time.Duration type

tasks.go

@@ -1,11 +1,13 @@
 package main
 
+import "time"
+
 // TODO: Finish off doc. here
 
 type Task struct {
 	TaskName string        `json:"taskname"`
 	TaskDesc string        `json:"taskdesc"`
-	Interval int32  `json:"interval"`
+	Interval time.Duration `json:"interval"`
 	CMD      string        `json:"cmd"`
 	Icon     string        `json:"icon"`
 }