working on binary search
binary search works for everything but element 0 and unfound elements
everything but unfound elements
cleanup binary_search
added unfound case, tests, etc.
adjust spacing, like a fool
initial linked list
LL takes all elements
no, really, it takes all elements now
LL#to_a; order is reversed
LL takes any objects, rather than single array
ll sorted by node value
ll different object ids! Woot
ll correct to_a based on object id
ll to_a spacing
ll mixed input tests
ll edits to account for inputs of zero size
ll comments
ll #last, tests
ll #push