alabama scraper

finally got it all working — scrapes both the RFP site and the separate ITB site.

a couple of things:
  -  i added both urls to the yaml; not sure if that's how you want it
  -  since this scrapes both `RFPs` and `ITBs`, i named it `solicitations.coffee` instead of `rfps.coffee`

happy to make any changes or adjustments if you'd like. just lemme know.