Add .dir-locals.el and DevelMain.hs for GHCi reloading support
Add -DDEVELOPMENT to .ghci
Merge pull request #21 from chrisdone/postgres

Updates for running inside GHCi
mv DevelMain.hs into app folder
improve DevelMain documentation
Merge remote-tracking branch 'origin/postgres' into postgres
Merge branch 'postgres' into simple