Implement ConcordeSolver as TSPAlgorithm
Update README.md
Ignore files generated by Concorde during tsp solving
Add line breaks to README.md dependencies
Restructure Makefile for more generic includes and libs
Remove tour files from data/tsp directory
Add additional Concorde file extensions to .gitignore
Create test for ConcordeSolver
Add .gitkeep for tmp directory
Remove concorde.a and concorde.h on make clean
Separate TSP solution tests into different test files
Pipe Concorde output to file
Update README.md with information about modified Concorde source
Merge branch 'concorde-solver'

Conflicts:
	src/simulate_tsp.cc