Added a set of Controls for as-yet implemented options (mostly regarding the manner in which WordModels are rendered). These exist in a separate tab from Word Cloud and Statistics. For this purpose, an implementation of RangeSlider from www.thejoyofcode.com/Creating_a_Range_Slider_in_Silverlight_and_some_of_the_binding_gotchas_in_SL3_.aspx was used.