Add default constructor for backwards compatibility with FXML.

[maven-release-plugin] prepare release floaty-field-1.1.0

Merge branch 'master' of https://github.com/andytill/floaty-field.git

Conflicts:
	pom.xml
	src/main/resources/floatyfield/floaty-field.fxml

Some maven nonsense.