Fixed #151 - remove javafx.Color from server

src/de/deadlocker8/budgetmaster/logic/Category.java

src/de/deadlocker8/budgetmaster/logic/CategoryHandler.java

src/de/deadlocker8/budgetmaster/logic/CategoryInOutSum.java

...eadlocker8/budgetmaster/logic/charts/CategoriesChart.java

.../deadlocker8/budgetmaster/logic/charts/MonthBarChart.java

...budgetmaster/logic/serverconnection/ServerConnection.java

src/de/deadlocker8/budgetmaster/logic/utils/FileHelper.java

...deadlocker8/budgetmaster/ui/cells/CategoryBudgetCell.java

src/de/deadlocker8/budgetmaster/ui/cells/CategoryCell.java

src/de/deadlocker8/budgetmaster/ui/cells/PaymentCell.java

.../deadlocker8/budgetmaster/ui/cells/SmallCategoryCell.java

...er8/budgetmaster/ui/controller/NewCategoryController.java

...ker8/budgetmaster/ui/controller/NewPaymentController.java

...ocker8/budgetmaster/ui/controller/SettingsController.java

...adlocker8/budgetmasterserver/logic/database/Database.java

...r8/budgetmasterserver/logic/database/DatabaseCreator.java

...8/budgetmasterserver/logic/database/DatabaseExporter.java

...r8/budgetmasterserver/logic/database/DatabaseHandler.java

...8/budgetmasterserver/logic/database/DatabaseImporter.java

...de/deadlocker8/budgetmasterserver/server/SparkServer.java