Merge branch 'refactoring/3-checkstyle' into 'master'

.gitignore

simpleexample2/.gitignore

...core/src/main/java/simpleex/json/LatLongDeserializer.java

...ui/src/main/java/simpleex/ui/AbstractFxAppController.java

simpleexample2/fxui/src/main/java/simpleex/ui/FxApp.java

...fxui/src/main/java/simpleex/ui/LatLongCellController.java

...i/src/main/java/simpleex/ui/MetaDataEditorController.java

...xui/src/main/java/simpleex/ui/RestLatLongsDataAccess.java

...example2/fxui/src/main/java/simpleex/ui/tags/Snippet.java

...example2/fxui/src/main/java/simpleex/ui/tags/TagsBar.java

...2/fxui/src/main/resources/simpleex/ui/MetaDataEditor.fxml

...stapi/src/main/java/simpleex/restapi/LatLongsService.java