Added curb to Gemfile (needed for downloading sample image files)

Updated URL for ubnist1.casper-rw.gen1.aff
Added line about database migration to README.md

Gemfile

@@ -41,4 +41,5 @@ gem 'jquery-rails'
 gem "compass-rails", "~> 1.0.0", :group => :assets
 gem "compass-susy-plugin", "~> 0.9.0", :group => :assets
 
-gem "dfxml", :git => "git://github.com/anarchivist/dfxml.git"
+gem "dfxml", :git => "git://github.com/anarchivist/dfxml.git"
+gem "curb"

README.md

@@ -24,6 +24,10 @@ Get the application's gems:
 
 	$ bundle install
 
+Migrate database:
+
+  $ rake db:migrate
+
 Start up Solr:
 
 	$ cd jetty
@@ -41,4 +45,4 @@ Start Gumshoe:
 
 	$ rails s
 
-Open your browser to http://localhost:3000/ and start playing!
+Open your browser to http://localhost:3000/ and start playing!

lib/tasks/gumshoe.rake

@@ -47,7 +47,7 @@ namespace :gumshoe do
     task :download do
       FileUtils.mkdir "images" rescue nil
       curl = Curl::Easy.new
-      curl.url = "http://digitalcorpora.org/corp/images/nps/nps-2009-casper-rw/ubnist1.casper-rw.gen2.aff"
+      curl.url = "http://digitalcorpora.org/corp/nps/drives/nps-2009-casper-rw/ubnist1.casper-rw.gen2.aff"
       curl.perform
       file = File.new('images/ubnist1.casper-rw.gen2.aff', 'wb')
       file << curl.body_str
@@ -56,4 +56,4 @@ namespace :gumshoe do
     end
   end
 
-end
+end