Merge pull request #1 from 52North/master

align
move OpenLayers proxy setup to .wpsSetup method.
fix unit tests.
only access the domElement when its there.
add a XML templating function + abstract method for payload creation
example configuration to be used with ExecuteRequest and form creation
add ExecuteRequest class to create payload, including TEST!
only create payload if this.settings.data is null
replace '$' with 'jQuery'
add POST+GET for DescribeProcess and GetCapabilities
support complex inputs in ExecuteRequest building + tests.
Merge pull request #27 from matthesrieke/refactor-class-inheritance

Refactor class inheritance