Read WMS Capabilities.
| OpenLayers. | Read WMS Capabilities. | 
| Properties | |
| defaultVersion | {String} Version number to assume if none found. | 
| profile | {String} If provided, use a custom profile. | 
| Constructor | |
| OpenLayers. | Create a new parser for WMS capabilities. | 
| Functions | |
| read | Read capabilities data from a string, and return a list of layers. |