added reduce-on-idle and close-on-idle options (closes #9)

client.go

@@ -29,6 +29,13 @@ type Client struct {
 	dontPublishLease bool
 	encryptLease     bool
 
+	reduceIdle         bool
+	reduceIdleTime     uint
+	reduceIdleQuantity uint
+
+	closeIdle     bool
+	closeIdleTime uint
+
 	debug bool
 }
 
@@ -57,6 +64,11 @@ func NewClientFromOptions(opts ...func(*Client) error) (*Client, error) {
 	c.outBackups = 2
 	c.dontPublishLease = true
 	c.encryptLease = false
+	c.reduceIdle = false
+	c.reduceIdleTime = 300000
+	c.reduceIdleQuantity = 4
+	c.closeIdle = true
+	c.closeIdleTime = 600000
 	c.debug = false
 	for _, o := range opts {
 		if err := o(&c); err != nil {