OS: Windows 7 (ver 6.1, arch amd64)
Java: 1.7.0_17 (by Oracle Corporation)
Launcher: 0.9.3 (Dev) (bootstrap 3)
Minecraft: 13w24b (updated Fri Jun 14 15:54:59 CEST 2013)
What I expected to happen was...:
Tried to simply change the resource pack from one made by that tool to the default one.
What actually happened was...:
Minecraft crashed D:
There is the crash log attached.