nested_intervals 0.6.0

nested & overlapping interval set functions, overlap, union, etc
Documentation
nested_intervals Changelog
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0.2.2 - fixed a bug in merge_split where outer intervals being split in "three" would not be processed correctly.
0.2.1 - removed feature(nll)
0.2.0 - switched from 'panic' input error handling to Result
0.1.9 - introduced overlap_status
0.1.8 - fixed a panic in merge_split with repeated ids 
0.1.7 - refactoring only
0.1.6 - find_closest now correctly looks both directions
0.1.5 - has_overlap return false on empty (x..y is x>=y) intervals
0.1.4 - fixed a bug in merge_hull which would sometimes ommit the last interval
0.1.3 - added merge_connected
0.1.2 - ids in merge_hull now sorted like in merge_split
0.1.1 - fixed new_with_ids to sort ids correctly
0.1.0 - initial release