Update constraints on account attributes name

src/main/java/org/whispersystems/textsecuregcm/entities/AccountAttributes.java

@@ -33,7 +33,7 @@ public class AccountAttributes {
   private int registrationId;
 
   @JsonProperty
-  @Length(max = 50, message = "This field must be less than 50 characters")
+  @Length(max = 204, message = "This field must be less than 50 characters")
   private String name;
 
   @JsonProperty

src/test/java/org/whispersystems/textsecuregcm/tests/controllers/DeviceControllerTest.java

@@ -195,7 +195,7 @@ public class DeviceControllerTest {
                                  .target("/v1/devices/5678901")
                                  .request()
                                  .header("Authorization", AuthHelper.getAuthHeader(AuthHelper.VALID_NUMBER, "password1"))
-                                 .put(Entity.entity(new AccountAttributes("keykeykeykey", false, 1234, "this is a really long name that is longer than 80 characters", true, true, null),
+                                 .put(Entity.entity(new AccountAttributes("keykeykeykey", false, 1234, "this is a really long name that is longer than 80 characters it's so long that it's even longer than 204 characters. that's a lot of characters. we're talking lots and lots and lots of characters. 12345678", true, true, null),
                                                     MediaType.APPLICATION_JSON_TYPE));
 
     assertEquals(response.getStatus(), 422);