Move main package to cmd/task

.gitignore

@@ -13,4 +13,4 @@
 # Project-local glide cache, RE: https://github.com/Masterminds/glide/issues/736
 .glide/
 
-task
+./task

cmd/task/task.go

@@ -0,0 +1,9 @@
+package main
+
+import (
+	"github.com/go-task/task"
+)
+
+func main() {
+	task.Run()
+}

task.go

@@ -1,4 +1,4 @@
-package main
+package task
 
 import (
 	"fmt"
@@ -43,7 +43,7 @@ func (err *TaskRunError) Error() string {
 	return fmt.Sprintf(`Failed to run task "%s": %v`, err.taskName, err.err)
 }
 
-func main() {
+func Run() {
 	log.SetFlags(0)
 
 	args := os.Args[1:]