Fix OF-799: Select correct input radio on click into the text field.
Move all property keys regarding connection properties into a single class.
Merge pull request #27 from SvenBunge/PropertyExtract

Move all property keys regarding connection settings into a one class
Let travis also build the plugins
Merge pull request #26 from SvenBunge/OF-799

Fix OF-799: Select correct input radio on click into the text field.