clock
-----

A clock takes any number of strings and sends them at a somewhat consistent rate
on a buffered channel. You can specify a tick interval and a cycle duration to
control how long it takes for the full set of keys to be cycled through. For
example, if you use an interval of 1 second and a cycle time of 1 minute and add
120 keys, the clock will send a string on Channel 120 times per minute (2 per
second on average).

If the buffered channel becomes full, the clock will start dropping strings on
the floor until room is available on the channel.

Any given key will always be placed at the same position on the clock as long as
the interval and cycle remain the same.

The clock can be stopped and started at any time.

```go
import (
  "fmt"
  "github.com/stvp/clock"
  "time"
)

c := clock.New(100*time.Millisecond, time.Minute)
c.Add("neat")
c.Add("dude")
c.Add("rad")
c.Start()

for str := <-c.Channel {
  fmt.Printf("Received: %s\n", str)
}
```


clock
-----

A clock takes any number of strings and sends them at a somewhat consistent rate
on a buffered channel. You can specify a tick interval and a cycle duration to
control how long it takes for the full set of keys to be cycled through. For
example, if you use an interval of 1 second and a cycle time of 1 minute and add
120 keys, the clock will send a string on Channel 120 times per minute (2 per
second on average).

If the buffered channel becomes full, the clock will start dropping strings on
the floor until room is available on the channel.

Any given key will always be placed at the same position on the clock as long as
the interval and cycle remain the same.

The clock can be stopped and started at any time.

```go
package main

import (
	"fmt"
	"github.com/stvp/clock"
	"time"
)

func main() {
	c, err := clock.New(100*time.Millisecond, time.Minute, 0)
	if err != nil {
		panic(err)
	}
	c.Add("neat")
	c.Add("dude")
	c.Add("rad")
	c.Start()

	for str := range <-c.Channel {
		fmt.Printf("Received: %s\n", str)
	}
}
```


Fix and format example code.
Fix and format example code.
