get sns notifications sent for all build return result types
display this version of the plugin in jenkins differently
Create README.md
Update README.md
Adding modify pom.xml according to Jenkins version

Also made the whole thing look nicer! ;-)
Merge pull request #1 from tarciosaraiva/patch-1

Adding modify pom.xml according to Jenkins version
Increased Jenkins to current LTS version.
Ignore also IntelliJ project files.
Allow to specify subject and message template (with variable substitution).
Bumped up version number again, to not eventually conflict with version from forked repos. Added Julian and Niko as developers.
Reworked the README for a more general purpose as well as describe a bit the developer workflow.
Fixed plugin name.
Stick with 1.7 for the time being.
Resolve conflict in pom.xml
Merge in changes from nikos/snsnotify-plugin master branch.