Move Set::hasFlow() to new Algorithm\Flow
Add tests with 100% coverage for Algorithm\Flow
Add new Algorithm\Flow to CHANGELOG
Move Vertex::getFlow() to Algorithm\Flow::getFlowVertex()
Document moved Vertex::getFlow()
Merge Algorithm\Balance into Algorithm\Flow
Document Algorithm\Balance in now part of Algorithm\Flow
Fix missing import
Add tests with 100% code coverage for Algorithm\Flow
Merge pull request #47 from clue/move-algo-flow

Move flow and balance algorithms to new Algorithm\Flow