Merge branch 'v2_15_0'

BudgetMasterServer/pom.xml

...ava/de/deadlocker8/budgetmaster/charts/DefaultCharts.java

.../deadlocker8/budgetmaster/controller/AboutController.java

...de/deadlocker8/budgetmaster/reports/ReportController.java

.../java/de/deadlocker8/budgetmaster/templates/Template.java

...eadlocker8/budgetmaster/templates/TemplateController.java

...de/deadlocker8/budgetmaster/transactions/Transaction.java

...ker8/budgetmaster/transactions/TransactionController.java

...udgetmaster/transactions/TransactionImportController.java

...er8/budgetmaster/transactions/csvimport/AmountParser.java

.../budgetmaster/update/BudgetMasterUpdateConfiguration.java

...rces/charts/IncomesAndExpendituresPerMonthByCategories.js

...urces/charts/IncomesAndExpendituresPerYearByCategories.js

...terServer/src/main/resources/languages/base_de.properties

...terServer/src/main/resources/languages/base_en.properties

...terServer/src/main/resources/languages/news_de.properties

...terServer/src/main/resources/languages/news_en.properties

...erver/src/main/resources/static/css/transactionImport.css

...MasterServer/src/main/resources/static/js/customSelect.js

...terServer/src/main/resources/static/js/libs/plotly.min.js