Merge branch 'v2_8_0'

build/screenshots/light/search.png

build/screenshots/light/settings_1.png

build/screenshots/light/settings_2.png

build/screenshots/light/settings_3.png

build/screenshots/light/statistics.png

build/screenshots/light/templates_1.png

build/screenshots/light/transactions.png

pom.xml

...in/java/de/deadlocker8/budgetmaster/accounts/Account.java

.../de/deadlocker8/budgetmaster/accounts/AccountService.java

...dlocker8/budgetmaster/advices/GlobalControllerAdvice.java

...dlocker8/budgetmaster/authentication/LoginController.java

...ocker8/budgetmaster/authentication/WebSecurityConfig.java

...ava/de/deadlocker8/budgetmaster/backup/GitBackupTask.java

...java/de/deadlocker8/budgetmaster/categories/Category.java

.../deadlocker8/budgetmaster/categories/CategoryService.java

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

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

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

...deadlocker8/budgetmaster/controller/BackupController.java