Use https github adress for hayai in travis config
Use https github adress for hayai in travis config

ClausSteuer/ParallelBottomUpBalancedOctreeBuilder,ClausSteuer/ParallelBottomUpBalancedOctreeBuilder,ClausSteuer/ParallelBottomUpBalancedOctreeBuilder,ClausSteuer/ParallelBottomUpBalancedOctreeBuilder