Re-add facet settings

Required for Eclipse/Virgo to know that the project is a bundle
adding back eclipse settings
removing .settings file except facet, removes .classpath, updates spring
to 3.1.0 to keep up with frontend update of same version, updates spring
schema reference in config files to 3.1 to keep up with dependency
changes.
removing + character from .gitignore file, removes .project too
Merge pull request #47 from domenic/gitignore-eclipse

Re-add facet settings
Merge pull request #48 from openworm/development

development -> master