Delete DRF code.
Fix bug in plot.py.
Stub out fat-tree.
Update temperature in simulated annealing algorithm.
Add sanity check in node.py.
Add unit tests for links, flows, jobs and nodes.
Able to specify how many number of paths to take for routing.

Clean up code too.
Optimize jellyfish topology creation.
Simplify topology plotting script.
Able to specify number of jobs in config.
Reorganize graph so that it is more efficient.
Turn some graphs into histogram. Also, correct CDF plot.
Move k-path and floyd-warshall to their separate module.

This will yield less recomputations while running experiments.
Add TODOs.
Add more item to TODO.