Some documentation
Updated readme
New unified iterators
Updated readme
Updated makefile
Changed default library dir
Reverted to /usr/lib because /usr/local/lib is not in ld path by default
Formatting
Implemented unified iteration for arrayqueue
Clarified reverse iterator availability
Updated iterators
Implemented iterators for dualarraydeque, fixed elem_size assignment
Fixed doc
Implemented iterators for rootisharraystack
Implemented iterators for sllist
Iterator struct optimization
Documentation correction
Renamed variable for clarity
Documentation correction
Implemented iterators