Uct2015 core

Adds info for 4x8 taus. I tried to fix the indentation differences between my code and Sridhara's update. I mostly had success. However, I'm having trouble getting git to tell me that one section of the code (808-941 in old and 923-1072 in new) is indented in the same way. I think it might be a difference between tab vs spaces. Unfortunately, this makes it a lot harder to tell what has really changed between those sections. 
Use more consistent line-breaks.