Switch from jeweler to pure bundler for building gem
Add rake to gemfile to make test run under ruby 1.8.7
Fix warning in mocha
Remove obsolete VERSION file
Merge branch 'master' of https://github.com/svoop/workflow into svoop-master
issue58: switch from private to protected callback methods
Install dot on travis-ci to run tests for workflow diagram generation
Create temporary folders on travis-ci
Run travis-ci build with ruby 1.8.7 and 1.9.3
Issue #53 Add support for private callback methods again - but only in the immediate class