Initial split of runtime perf graphs from impl perf graphs.
Rename runtime files and fix references in docs
Improve benchmarking code for load testing.
Make update faster in special cases: empty SortedDict and passing in a dict
Add load parameter arg option to SortedDict
Update benchmark scripts for load tests (fixes)
Initial load test results
Fix shallow copy definitions
Add tests for 100% coverage
Add documentation for new SortedDict *load* parameter
Change default load factor from 100 to 1000
Update benchmark_plot notes, fix sorteddict benchmarking, and rename runtime comparison results
Rename runtime perf images
Update all performance data.
Update documentation and add load-factor performance comparison
Add perf graphs for SortedDict.__contains__
Bump version to 0.8.5