Merge pull request #1 from williammizuta/master

Allow to add a new signer
Adding support to batch mail sending, refactoring TemplateMail and pushing next version to 1.2.0
Logging and renaming
Convenience interceptor that sends all postponed emails before ending a request
Exception if trying to send an email but failing to schedule it
More logging
Fixing bug in logging
instanciando sem arg se nao tem
Merge branch 'master' of github.com:caelum/vraptor-simplemail
Fixing concurrency problems
Updating READMEs to next release
[maven-release-plugin] prepare release vraptor-simplemail-1.2.0
[maven-release-plugin] prepare for next development iteration
Restoring MockTemplateMail and MockTemplateMailer
Updating vraptor-environment version
Updating README version
[maven-release-plugin] prepare release vraptor-simplemail-1.2.1
[maven-release-plugin] prepare for next development iteration
Updating vraptor-environment version
[maven-release-plugin] prepare release vraptor-simplemail-1.2.2