puppetboard/app: Loading the environments in each error_processor function
puppetboard/app: Loading the environments in each error_processor function

In the previous commit the environment loading was moving to each request
and that functionality change was not reflected in the error processor
functions (for 4xx and 5xx series errors)

tparkercbn/puppetboard,mterzo/puppetboard,voxpupuli/puppetboard,stoyansbg/puppetboard,voxpupuli/puppetboard,grandich/puppetboard,stoyansbg/puppetboard,mterzo/puppetboard,grandich/puppetboard,grandich/puppetboard,puppet-community/puppetboard,tparkercbn/puppetboard,james-powis/puppetboard,johnzimm/xx-puppetboard,voxpupuli/puppetboard,johnzimm/xx-puppetboard,holstvoogd/puppetboard,johnzimm/xx-puppetboard,tparkercbn/puppetboard,holstvoogd/puppetboard,johnzimm/puppetboard,johnzimm/xx-puppetboard,johnzimm/puppetboard,johnzimm/puppetboard,james-powis/puppetboard,puppet-community/puppetboard,mterzo/puppetboard,tparkercbn/puppetboard,holstvoogd/puppetboard,grandich/puppetboard,puppet-community/puppetboard,stoyansbg/puppetboard,james-powis/puppetboard,mterzo/puppetboard