fixed pom and replace deprecated dependencies

pom.xml

...a/de/deadlocker8/smarttime/charts/ChartGUIController.java

...va/de/deadlocker8/smarttime/charts/PieChartGenerator.java

...ava/de/deadlocker8/smarttime/charts/SummaryGenerator.java

.../java/de/deadlocker8/smarttime/controller/Controller.java

...a/de/deadlocker8/smarttime/controller/EditController.java

...eadlocker8/smarttime/controller/InsertTimeController.java

...e/deadlocker8/smarttime/controller/ProjectController.java

...de/deadlocker8/smarttime/controller/ReportController.java

...eadlocker8/smarttime/controller/TimePickerController.java

src/main/java/de/deadlocker8/smarttime/core/ConvertTo.java

src/main/java/de/deadlocker8/smarttime/core/Exporter.java

src/main/java/de/deadlocker8/smarttime/core/Importer.java

src/main/java/de/deadlocker8/smarttime/core/LogObject.java

src/main/java/de/deadlocker8/smarttime/core/Timer.java

src/main/java/de/deadlocker8/smarttime/core/Utils.java

src/main/java/de/deadlocker8/smarttime/main/Main.java

src/main/resources/de/deadlocker8/smarttime/_de.properties