Merge pull request #2 from skaldarnar/develop

Some minor tweaks and fixes:
Gradle: Add 'application' plugin

gradlew run / distZip / distTar / installApp
Merge pull request #3 from mkalb/gradleApplication

Gradle: Add 'application' plugin
Gradle: Added Checkstyle plugin

gradlew check
Merge pull request #4 from mkalb/checkstyle

Gradle: Added Checkstyle plugin
Add Gradle task "createVersionInfoFile"

Gradle generate during Jenkins build a file "versionInfo.properties".
The new class "TerasologyLauncherVersion" reads this file and offers
getter for the properties.
Merge pull request #5 from mkalb/version

Add Gradle task "createVersionInfoFile"