refactor engine testing scenario

Engine is now tested standalone by leveraging a dummy rails app
Enable Guard for speedy testing
Move factories to the more standard location `spec/factories/*`
Update README with a Testing section
Rename migrations to contain datetimestamps for their version to fix migration order issues when migrating the dummy application

1 files changed, 2 insertions, 0 deletions

diff --git a/.rspec b/.rspec
new file mode 100644
index 0000000..4d52986
--- /dev/null
+++ b/.rspec
@@ -0,0 +1,2 @@
+--color spec
+--drb