InfoBox extended, WindowChild content changes on coord change

- InfoWindow Content stays fresh by forcing doShow on coords change
- uiGmapInfoBox to add closeBoxDiv as pref over closeBoxUrl

Close box code results in via some bootstrap and font awsome love
![screen shot 2014-12-16 at 12 00 11 am](https://cloud.githubusercontent.com/assets/583593/5448862/1b451c3e-84b7-11e4-8608-e1dd336382e0.png)