report allocations in benchmarks, clone a gc-friendly version of mmh3, reduce allocs in BenchmarkAddSparse and BenchmarkAddNormal
fix mm3 tests, cosmetics
package doc and reference for mm3
cosmetic changes, replace more muls with bitshifts (6g doesn't)
golint + build tag
Merge pull request #3 from mynameisfiber/reduce_alloc

Reduce allocations