Feature/populate database

[joshmcarthur]

@jarsbe,

Now that the Job relationship pull is merged, this one is also ready to go. It adds a number of rake tasks that are bundled up into the meta task, db:populate:all. Here's what running it will do:

• Create categories from the list in categories.yml
• Create job types from the list in types.yml
• Create cities and regions from the data structure in cities.yml
• Create 10 employers
• Create 100 jobs against those 10 employers, all in one region

Have a read over the diff carefully though, because I also needed to make a number of changes against the models, specs and factories to get this task working.

[jackcallister]

@joshmcarthur I'll definitely take you up on some pp for the taxonomies - it seems like a great idea. I can see it being really useful for having job seekers add 'Looking for work in x, x and x categories' along with the type of work. Somehow I've managed to code like a headless chook tonight, so I'll leave it for another day.

This is awesome stuff - nice to see how it's done. I'm happy with the validations on models etc - ready to merge in the morning!