Some additional options

These are some options that i needed. They might be some useful additions:

1. Always show the indicator, not only on input focus.
2. Indicator position right-aligned or left-aligned with the input field. See image below:
![screen shot 2014-06-25 at 5 54 03 am](https://cloud.githubusercontent.com/assets/2029162/3380822/99e1530e-fc0f-11e3-810c-d30624bf65d2.png)


3. Append the indicator to the input's parent div. This is really helpful when DOM elements are being added/removed dynamically and the input field position is modified.
Currently if that happen, the indicator stays at its initial position until window is resized. So having it inside the parent div fix this issue.

Please have a look and review. Thanks.