Add aliases for API functions

[jeremiahshirk]

Standard aliases for the API functions will make them more pleasant to use. When qualified by the module name, they will continue to be unambiguous. The long-form names will continue to be available.

For example:

import monitis.monitors.predefined.fullpageload as fullpageload

# this is annoying
fullpageload.delete_full_page_load_monitor(monitor_id=123)

# this is awesome
fullpageload.delete(id=123)

[jeremiahshirk]

Could do this as a light OO wrapper around the API, so we would have:

Non-OO:

[fpl.delete_full_page_load_monitor(monitor_id=x['id']) for x in fpl.full_page_load_tests()]

OO:

[x.delete() for x in fpl.tests()]

Based on tests() returning an object with a delete method, whereas full_page_load_tests just returns the raw dict from the API JSON result.

I would rather use the latter.