Made timer_handler_t::cancel_timer delete its token, instead of leaking timer_token_t objects.
Removed boost program options valgrind suppression.
Added new google protobuf and v8 global initialization leak suppression.
Removed google::protobuf valgrind suppressions, used ShutdownProtobufLibrary in main.cc.
Merge branch 'next' into sam_1233
Removed unused header in timing.hpp.
Merge branch 'next' into sam_1233
Merge branch 'sam_1233' into next