celery hotfix
Merge pull request #127 from dimagi/cz

celery hotfix
update vellum
Merge pull request #128 from dimagi/gc-dev

Update ivr settings
update submodule refs to corehq and hqstyle
update submodule refs to payments
update psi
Add six to requirements, used in ESQuerySet slicing
Merge pull request #129 from kennknowles/require-six

Add six to requirements, used in ESQuerySet slicing
update submodules
fixing requirements for preindex
removing gibberish
Merge pull request #130 from dimagi/dmyung-working

fixing requirements for preindex
update submodules
display eula and cda in the context of CommCareHQ
commtrack migration
update corehq
Merge pull request #131 from dimagi/cda-eula

display eula and cda in the context of CommCareHQ
update submodule refs to mvp and dimagi-utils
update submodule ref to corehq