introduced develop branch
add paginated mail overview to browser history - was broken due to change in route config
[ci skip] travis: updated URL for tomcat deployment
removed CustomDelegatingWebMvcConfiguration
set max attachment upload size to 20 MB
replaced CustomExceptionResolver with ControllerAdvice
set release version
Merge pull request #13 from ksokol/release/3.0.2

Release/3.0.2