Usage changed:
- New `telenium.install()` to call within your app for remote control
- New function `telenium.connect(host='localhost')` to connect to a running application with telenium installed
New API functions:
- New `screenshot(filename=None)` to get a screenshot of the running app.
- New `evaluate(expr) -> result` to evaluate expression and return result, within the app
- New `evaluate_and_store(key, expr)` to evaluate expression and store the result in a id-map, used in `evaluate` and `execute` api
- New `select_and_store(key, selector)` to select the first widget matched by the XPath selector and store the result in a id-map, used in `evaluate` and `execute` api
And documentation is updated with 2 new real-world example !