Bump Terraform version to 0.7.4
Bump Terraform version to 0.7.4

raster-foundry/raster-foundry,raster-foundry/raster-foundry,azavea/raster-foundry,aaronxsu/raster-foundry,azavea/raster-foundry,aaronxsu/raster-foundry,azavea/raster-foundry,azavea/raster-foundry,aaronxsu/raster-foundry,raster-foundry/raster-foundry,azavea/raster-foundry,aaronxsu/raster-foundry