Ignore Netbeans files
Implement Comparable interface to allow sorting of repositories
Updated to Jenkins version 1.425

1.424 is the first version that supports Java 7
1.425 is the first version that provides the model class
GlobalConfiguratin
Added sorting to th repository list

This is important when you have a larger list of repositories. A
repository will be much easier to find.
Extracted global configuration into separate class

This allows the different extensions to access the repository list in a
central place.
Added method to resolve all available versions
Added support for I18N

Added english and german resource property files for each Jelly file
Added Messages.properties file for Java strings
Translated the help files
Updated plugin description
Minor HTML help file cleanup
Removed unused imports
Change log level from info to fine
Added constructor for situations where no local repository is necessay (i.e. get only the available versions)
Make sure the code works when no logger has been set
Added version build parameter
Added proxy support
Allow a VersionParameterValue to override the version of an ArtifactResolver build step.
Move method to determine the local repository folder to global configuration class
Use this method in all instances of the Aether class.
Added myself as developer of the plugin
don't change default target directory from previous version, this would change existing jobs
fix NPE when no proxy is configured
update dependency to LTS 1.509 and use latest hpi plugin