Crash Log
I have taken the 1.5.1 Brony pack, gutted it and put in a mix of my own preferred mods (until the Ult pack is updated) and those mods are:
ArsMagica_5.45.011
backpack-1.7.8-1.5.1 (2)
betterAnvil - 151 - 4.0
BiblioCraft[v1.1.5]
biomes-o-plenty-0.4.8
chisel-1.5.1-1.0.1...