Prepare first 0.4 release

[pieterbos]

Pull request to get this to maven central. Works on staging and snapshot repo. Just change version to end with -SNAPSHOT and it goes to the snapshot repo.

You need to disable parallel builds to be able to upload to maven central for now. The build file will raise an error if you try building parallel, with a notice that you should run it single threaded. Trying to build parallel will result in several separate repositories instead of one in sonatype.

You can of course still build in parallel as long as you do not deploy to staging.

To use, add a gradle.properties file either in the root dir of the repo, or at ~/.gradle/gradle.properties, with the following content:

signing.keyId=YourKeyId
signing.password=YourPublicKeyPassword
signing.secretKeyRingFile=PathToYourKeyRingFile

ossrhUsername=your-jira-id
ossrhPassword=your-jira-password

See http://central.sonatype.org/pages/gradle.html for more information

• ignore failing tests for now.
• make travis build pass with the properties not available
• allow upload of separate modules
• fix poms to contain needed information
• test staging
• test snapshot

[steijgeler]

This can be closed

[pieterbos]

has been merged already as part of pull request #5