Use single quotes around username and password

This is to avoid any shell interpretation of special characters.

phantom/api.rst

@@ -47,7 +47,7 @@ she could do the following with curl:
 
    .. sourcecode:: none
 
-      $ curl -d "username=alice&password=restaurant" https://phantom.nimbusproject.org/api/dev/token
+      $ curl -d 'username=alice&password=restaurant' https://phantom.nimbusproject.org/api/dev/token
       {"token": "xgy-4h324h2i4h32oi4h23", "user": 1, "success": true}
 
 Then, to use other endpoints, use this user id and token when querying. You can either include the 

phantom/httpscripting.rst

@@ -61,7 +61,7 @@ must be authenticated using this token. To get this token with curl,
 for example, a user 'alice' with the password 'restaurant' would do the following.
 Please substitute your username and password for 'alice' and 'restaurant':: 
 
-    $ curl -d "username=alice&password=restaurant" https://phantom.nimbusproject.org/api/dev/token
+    $ curl -d 'username=alice&password=restaurant' https://phantom.nimbusproject.org/api/dev/token
     {"token": "xgy-4h324h2i4h32oi4h23", "user": 1, "success": true}
 
 For convenience store those values in the following environment variables::

stream/streamquickstart.rst

@@ -126,7 +126,7 @@ Now you can create a process definition for this operation. To do so, you can ei
         "name": "My Operation"
     }
     }
-    $ curl -u username:password -H "Content-Type: application/json" -X POST --data @definition.json http://$PROCESS_REGISTRY_HOST:8081/api/process_definition/
+    $ curl -u 'username:password' -H "Content-Type: application/json" -X POST --data @definition.json http://$PROCESS_REGISTRY_HOST:8081/api/process_definition/
 
 Now you have created a Stream Operation Appliance!