2.0.0rc5 (May 6, 2019)

• fixes and improvements of algorithm interface
• various algorithm implementation fixes
• add support for Python 3.7
• documentation fixes
• introduced maximization
• added algorithms:
  • Fish School Search
  • Coral Reefs Optimization
  • Cuckoo Search
  • Forest Optimization Algorithm
  • Monarch Butterfly Optimization
• update runner utility
• update examples
• various bugfixes