Tagger component

Basic tagger component for uikit

Select a tag from the dropdown panel

![1](https://cloud.githubusercontent.com/assets/589448/4687743/e2c06938-565b-11e4-914f-55e919c6af60.jpg)


or add your own tags.

![2](https://cloud.githubusercontent.com/assets/589448/4687744/e4b96190-565b-11e4-9a02-6822064c336d.jpg)


prexisting tags and newly added tags feature different colors

![3](https://cloud.githubusercontent.com/assets/589448/4687745/e7931ed8-565b-11e4-9edc-9259409e34a7.jpg)


and an alert message will show up if the user types any character that you may have specified as invalid.

![4](https://cloud.githubusercontent.com/assets/589448/4687746/eb4ce2c0-565b-11e4-986f-d024c31f95fd.jpg)