Re-add facet settings

Required for Eclipse/Virgo to know that the project is a bundle
adding back settings for eclipse
Merge pull request #74 from domenic/gitignore-eclipse

Re-add facet 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, .project file and /bin from .gitignore
set connection node modified flag to false after sending it for the
first time, no need to keep sending them after each update if they don't
change
Merge pull request #75 from openworm/development

development -> master