Updated license
Merge pull request #36 from vacuumlabs/license

Updated license
Fixed 'Vaccum' typo
Merge pull request #37 from vacuumlabs/license

Fixed 'Vaccum' typo
Moved PersistentVector#iterator implementation
Merge pull request #39 from vacuumlabs/quick_fix_vector_iter_impl

Moved PersistentVector iterator implementation
Merge remote-tracking branch 'origin/master' into benchmark

Conflicts:
	benchmark/vector_speed/benchmarks.dart