moved server logic to own package

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

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

src/de/deadlocker8/budgetmaster/main/_de.properties

src/de/deadlocker8/budgetmaster/ui/SettingsController.java

src/de/deadlocker8/budgetmasterserver/logic/Database.java

...deadlocker8/budgetmasterserver/logic/DatabaseCreator.java

...eadlocker8/budgetmasterserver/logic/DatabaseExporter.java

...deadlocker8/budgetmasterserver/logic/DatabaseHandler.java

...eadlocker8/budgetmasterserver/logic/DatabaseImporter.java

src/de/deadlocker8/budgetmasterserver/logic/Settings.java

src/de/deadlocker8/budgetmasterserver/logic/Utils.java

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

src/de/deadlocker8/budgetmasterserver/main/_de.properties

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

...cker8/budgetmasterserver/server/category/CategoryAdd.java

...r8/budgetmasterserver/server/category/CategoryDelete.java

...cker8/budgetmasterserver/server/category/CategoryGet.java

...r8/budgetmasterserver/server/category/CategoryGetAll.java

...r8/budgetmasterserver/server/category/CategoryUpdate.java

...masterserver/server/categorybudget/CategoryBudgetGet.java