Add shell_context_processor to inject models to shell.
Add shell_context_processor to inject models to shell.

rockwotj/redash,imsally/redash,M32Media/redash,vishesh92/redash,crowdworks/redash,getredash/redash,amino-data/redash,44px/redash,chriszs/redash,rockwotj/redash,imsally/redash,moritz9/redash,chriszs/redash,EverlyWell/redash,44px/redash,EverlyWell/redash,useabode/redash,stefanseifert/redash,rockwotj/redash,hudl/redash,getredash/redash,denisov-vlad/redash,M32Media/redash,chriszs/redash,hudl/redash,stefanseifert/redash,alexanderlz/redash,44px/redash,crowdworks/redash,vishesh92/redash,moritz9/redash,imsally/redash,amino-data/redash,denisov-vlad/redash,alexanderlz/redash,crowdworks/redash,stefanseifert/redash,rockwotj/redash,chriszs/redash,useabode/redash,denisov-vlad/redash,imsally/redash,stefanseifert/redash,denisov-vlad/redash,crowdworks/redash,alexanderlz/redash,alexanderlz/redash,moritz9/redash,44px/redash,getredash/redash,hudl/redash,amino-data/redash,vishesh92/redash,M32Media/redash,stefanseifert/redash,moritz9/redash,vishesh92/redash,useabode/redash,getredash/redash,useabode/redash,getredash/redash,denisov-vlad/redash,hudl/redash,EverlyWell/redash,M32Media/redash,amino-data/redash,EverlyWell/redash