initC4w

Initialize the SDK

This method is assumed to be called every time the app starts

/**
 * This method is assumed to be called every time the app starts.
 * This method, among other things, will (if the customer is already registered/logged-in the app)
 *  - update the `lastseen` of the customer
 *  - update the push token of the customer
 *  @param pushToken - push token passed from mobile app
 */

- (void) initC4w: (NSString*) pushToken;