Bug 871849 - Correctly trace expando objects for OverrideBuiltin proxies. r=bzbarsky.

--HG--
extra : rebase_source : 0c848e1c18a366ecd95b1a9acc4b517d108131fe
bug 746244 - clean up a few things in genpgocert.py. r=jmaher
Bug 878043 - allow get_binary_path to return a path for any binary. r=glandium
bug 746244 - Port profileserver.py to Mozbase. r=jhammel

--HG--
rename : build/pgo/genpgocert.py.in => build/pgo/genpgocert.py