Added Eclipse project files

I have created the initial Eclipse project files so you should now be
able to clone the repository and edit it in Eclipse with little
configuration. Please note the following:

 - Maven support has been enabled. This is not compatible with the
   M2Eclipse plugin
 - nlog4f has been removed since there are some problems retrieving
   dependencies
 - Server configuration is for TomCat 7
 - .classpath is the only configuration file that has not been committed
 - See README for full details regarding installation and configuration