v1.1.0

Added

• Support libosrm as of v5.4 for faster table and route queries (#34)
• Add contributing guidelines (#56)
• Compile also with -std=c++11, useful in some environments (#55)

Changed

• Internals refactor setting up a scalable data model for future features (#44)
• Renamed solution indicators key in json output solution->summary
• Global cleanup with regard to coding standard (#56)

Removed

• Drop support for TSPLIB files (#48)
• Clean unused code and heuristics