Enabled injection of mail templates from vars as well as fields
Use Context.getProcessEngineConfiguration 

in preference to casting execution.getEngineServices().
Added beforeInit() to ProcessEngineConfigurator
Merge branch 'master' of https://github.com/Activiti/Activiti
Fixed ACT-1923: assignment to nobody reflected in history
Merge pull request #205 from tstephen/mail

Enable mail service task to use process variables for the body of the mail
Fixed user property
Merge branch 'master' of https://github.com/Activiti/Activiti
Adding setter for enabling/disabling auto discovery of configurations
Merge branch 'master' of https://github.com/Activiti/Activiti
Merge remote-tracking branch 'upstream/master'