Benchmark: Some awesome benchmark defaults
Split up benchmark and add Shared Taste benchmarks
SharedTaste: Cache friend mapping for randomInit
Benchmark: Tweak parameters
Merge remote-tracking branch 'bgamari/master'

Conflicts:
	network-topic-models/Benchmark.hs
Fix botched merge
Bench*: Reintroduce setNumCapabilities
BenchLDA: Restructure benchmark setup
Gibbs: Add debug events to diffworker
LDA: Stricify NetData
BenchLDA: Force NetData