Fixes #132 - Break reference tree so GC can cleanup coros
Issue #133: Correct call to non-existant function gpi_destroy_cb_handle
Initial commit of mmap_preload fun
Issue #118 - working mmap based example using ptrace
Merge branch 'Issue#118' of github.com:potentialventures/cocotb into Issue#118
Merge commit 'a44c48f43114de3f2cc229a229d761d860627d8c' into Issue#118
Issue #134: Provide int() access to handles