First pass at slwk with parallel segmented lists (two TODOs remain)
Ooops, add file
Finish SortedListWithKey2 and passing coverage tests
Move files around
Renmae v2 file to original
Finish rename in files SortedListWithKey to SortedListWithKeyPair and SortedListWithKey2 to SortedListWithKey
Fix stress for slwk
Pass 100% coverage testing
Add benchmarks for SortedListWithKey vs SortedListWithKeyPair vs SortedCollection
Merge branch 'slwk_parallel'
Remove SortedListWithKeyPair and references
Change _expand to use del rather than allocating new sublists
Express key and load args in repr and constructor calls
Improve __reversed__ with map rather than generator expression
Fix typo in github urls sortedcontainers changed to sorted_containers
Change comparer docs to reference Sequence, not iterable
Use comparer factory to reduce duplicated code
Remove print statements from coverage tests