Update specs to use 'expect' syntax using transpec.  Loosed gemspec to allow rspec versions greater than 2.14.x
Merge pull request #106 from petergoldstein/feature/run_transpec

Update specs to use RSpec 3.0.x syntax
allow configuring behavior of nested transactions #107
badges (including retina badge for the gem version)
avoid code duplication
support multiple guards per transition
support event guards #85
support reading from- and to-state during on_transition callback #100
Merge branch 'master' into aasm4