Fixed #1237: hpx::util::portable_binary_iarchive failed
Fixing warning about signed/unsigned mismatch
Adding missing #include
Merge pull request #1238 from STEllAR-GROUP/fixing_1237

Fixed #1237: hpx::util::portable_binary_iarchive failed
Removing travis cfg file.
Adding gdb debugging helpers
Removing debug output ...
Revert some when_each/wait_each fixes, back to the old wait as they do need the index