Update web.xml to servlet 2.5
Implemented springdsl generation for exception state property.
Fix some minor nuisance warnings in source and pom config.
Merge pull request #105 from temenostech/aaron-dev

Initial implementation of SpringDSL
Merge branch 'master' of https://github.com/temenostech/IRIS
Set mwe2 encoding to see if this resolves a small, but persistent xtext issue with the build.