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Reading back a 1 M lines (dense) facts file with jruby triggers Dbd::OutOfOrderError.

Tag 0.0.9.

Reading the same file with ruby-2.0.0 succeeds.

peter_v@peter64:~/p/dbd$ time jruby -J-Xmx18000m bin/test_6.rb  /mnt/sdb2/big/jruby_1_7_4_1_000_000_H
Dbd::OutOfOrderError: Dbd::OutOfOrderError
                << at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/dbd-0.0.8/lib/dbd/fact/collection.rb:45
                << at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/dbd-0.0.8/lib/dbd/graph.rb:25
  each_recursively at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/ruby_peter_v-0.0.9/lib/ruby_peter_v/each_recursively.rb:7
                << at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/dbd-0.0.8/lib/dbd/graph.rb:23
          from_CSV at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/dbd-0.0.8/lib/dbd/graph.rb:59
              each at /home/peter_v/.rvm/rubies/jruby-1.7.4/lib/ruby/1.9/csv.rb:1792
          from_CSV at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/dbd-0.0.8/lib/dbd/graph.rb:57
               tap at org/jruby/RubyKernel.java:1860
          from_CSV at /home/peter_v/.rvm/gems/jruby-1.7.4@dbd/gems/dbd-0.0.8/lib/dbd/graph.rb:56
            (root) at bin/test_6.rb:16
              open at org/jruby/RubyIO.java:1148
            (root) at bin/test_6.rb:15

real    0m14.742s
user    0m23.049s
sys 0m0.568s

peter_v@peter64:~/p/dbd$ cd ..
peter_v@peter64:~/p$ cd dbd/
...
Using /home/peter_v/.rvm/gems/ruby-2.0.0-p247 with gemset dbd
peter_v@peter64:~/p/dbd$ ruby bin/test_6.rb  /mnt/sdb2/big/jruby_1_7_4_1_000_000_H
Graph is ready (took 165.768683958s), now starting the write to disk
graph.size is 1001000

Rename Factories to something better (e.g. StubFactories)

I also want to use the "Factory" pattern as a proper pattern in for creating a new instance, so the "Factories" class that is now used for creating stubs/fixtures/test instances, should better be rename to something that is clearly related to specs/tests.

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