Filter fields IS_MOBILE and IS_TABLET final removal

[Matthew Cohoon]

Hello,
The filter fields IS_MOBILE and IS_TABLET have been deprecated since November 5, 2014 and API support for these fields will be removed in the coming weeks. 
If you have not done so already you should migrate your code to use DEVICE_CATEGORY. 

Insert, update and patch request which set filter fields to use IS_MOBILE and IS_TABLET will return an error.
-Matt