Fix for simultaneous connect w/ RDMA
Merge pull request #108 from tribal-tec/master

Fix for simultaneous connect w/ RDMA
Merge branch 'master' of https://github.com/Eyescale/Collage
CR #109
adding tabs
merge elie/mpi and correct some erros
Merge the two classes into co::MPIConnection
Move to separate MPI class with methods supportsThreads(), getRank(), getSize() and static instance(). allowMPI and code from init moves into ctor. Init just calls and prints MPI::instance()->supportsThreads() to initialize it from main.