Remove autocast references

docs/usermanual.md

@@ -150,13 +150,8 @@ then the NGSI v2 update uses `10`(number), `true` (boolean) and `78.8` (number)
 
 This functionality relies on string measures casting feature implemented in the iotagent library. This functionality
 uses native JavaScript [`JSON.parse()`](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/JSON/parse) 
-function to cast data coming from measures (as text) to JSON native types.
-
-In order to use it, the `autocast` configuration parameter has to be set to true. Please see
-[configuration section of iotagent library](https://github.com/telefonicaid/iotagent-node-lib/blob/master/doc/installationguide.md#global-configuration)
-for further information.
-
-This functionality does not change the attribute type, using the type specified in the config group or device provision.
+function to cast data coming from measures (as text) to JSON native types. This functionality does not change the attribute type, 
+using the type specified in the config group or device provision, even if it is not consistent with the measures that are coming. 
 
 As an example, for a given measure:
 

test/unit/ngsiv2/config-test.js

@@ -45,7 +45,6 @@ config.amqp = {
 
 config.iota = {
     logLevel: 'FATAL',
-    autocast: true,
     contextBroker: {
         host: '192.168.1.1',
         port: '1026',