maven-gitflow-plugin:release setting POM version to 0.4-SNAPSHOT
Merge branch 'release/0.3' into develop
Merge branch 'hotfix/0.3.1' into develop

Conflicts:
	pom.xml
Merge branch 'hotfix/0.3.2' into develop

Conflicts:
	pom.xml
Merge branch 'hotfix/0.3.3' into develop

Conflicts:
	pom.xml
Merge branch 'hotfix/0.3.4' into develop

Conflicts:
	pom.xml
Remove unused code.
Use 0.2-SNAPSHOT of jgitflow
License section.
Use more recent plugins.
Add a bit of info to the help plugin & use @Mojo annotations.
Remove unused imports.
Tidy up:
- Use @Mojo annotations
- Use git revert to simplify code
- Provide git flow style output
- Remove unused junk
mvn gitflow:release setting POM version to 0.4
Flesh out license name.
Merge branch 'release/0.4'