fixes wrong refs
Merge remote-tracking branch 'origin/dev' into dev
Merge remote-tracking branch 'origin/dev' into dev
improve accuracy using erfc(1-erf(x)) not erf
Merge pull request #1746 from cwmine/dev

improve accuracy of PI and EI using erfc
minor fixes, added excludes list
Merge pull request #1748 from naylor-b/dotgraph

minor fixes, added excludes list
switch to erfc for expectedimprovement_multiobj
Merge remote-tracking branch 'origin/dev' into dev
Merge pull request #1749 from cwmine/dev

switch to erfc for expectedimprovement_multiobj
improved finding of wing executable on windows
Merge pull request #1750 from naylor-b/wing

improved finding of wing executable on windows
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into dfd