Merge pull request #1599 from kmarsteller/dev

Fixing pangolin instance that was leaving its EBS volumes around after t...
run bliss at bottom of bliss.py
bliss works
still works
got sellar_bliss2000 working
bliss works, bliss2000 almost works
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into dev
brought over some stuff from earlier performance branch
caching _all_child_vars
caching boundary inputs/outputs
caching srcs and boundary vars
some fixes to fixed point iterator's check_config
caching for list_connections
final fies
Merge branch 'bench' of https://github.com/Kenneth-T-Moore/OpenMDAO-Framework into dev
Merge pull request #1600 from Kenneth-T-Moore/bench

Fix to make sure we don't run the model in FPI's check_config
bliss2000 works, or at least as well as it ever did...which is not all that much
Merge branch 'dev' of https://github.com/OpenMDAO/OpenMDAO-Framework into dev
cleaned up some config_changed stuff
test for archtectures