Modified the documentation to link back to the mentioned property.

Signed-off-by: Esteban Torres <me@estebantorr.es>
Added appledoc documentation syntax to each method.

Signed-off-by: Esteban Torres <me@estebantorr.es>
When showing an NSError inside a UIAlertView now the detailed errors are shown.

Signed-off-by: Esteban Torres <me@estebantorr.es>