removing mergefile on completion
of garbage collection

bug thats causing memory corruption,
continuing search
Debug statements to track down initialization bug.
for small initial inputs, the first few inserts are not
retaining their fpos.
fixed bug in readFile
the issue was a failure in remove,
when there was a collision it was taking the
fpos_list of the first element instead of the element
its deleting. fixed and cleaned.
Invremented to version 0.3