initial commit: test cases and makefile
basic implementation done. ,malloc, O(1) free and coalesce. need to do sbrk when out of space
optimized dmalloc to use best fit block
started implementing amortized constant time allocation
doubly-linked freelist passes 55% of tests
moved list links into payload. doubly linked list passes 81%
dmm_LIFO_foot.c does coalesce  and free in O(1)
finished the project. dmm_LIFO.c allocates in O(free), frees and coalesces in O(1)
Merge branch 'master' of https://github.com/zavidovych/heapManager