Benchmark rewritten to use benchmark_harness
Reorganized benchmark structure
Memory map benchmarks
map memory benchmark - Added PureJS and standart map
Merge remote-tracking branch 'origin/master' into benchmark

Conflicts (deleted):
	benchmark/map_bench_wordcount.dart
	benchmark/src/benchmark.dart
	benchmark/src/simple_map_1.dart
	benchmark/src/simple_map_2.dart
Memory bench: Linear interpolation replaced by single run ignoring VM data
Merge remote-tracking branch 'origin/benchmark'
Merge remote-tracking branch 'origin/master' into benchmark
MapBench: lookup: fixed orElse as positional
Simplified Map memory benchmark
Map bench: Removed unused Option occurence
faster iterator + fixed found bugs
renaming, polishing makefile
Merge branch 'master' into benchmark
Merge remote-tracking branch 'origin/master' into benchmark

Conflicts:
	pubspec.lock
Map speed benchmark makefile
Merge remote-tracking branch 'origin/master' into benchmark

Conflicts:
	pubspec.yaml
Splitted ReadMap#mapValues to Persistent and Transient map
Deleted ReadMap signature adjustment
small changes in benchmark, makefile