Fix attendant field type in ProcessingConfig.Task class
Fix for support old reporting confugurations with overloading of reporting.properties
Added diagnostic reporter in the default configuration
Merge remote-tracking branch 'griddynamics/master' into HEAD

Conflicts:
	chassis/core/src/main/java/com/griddynamics/jagger/user/ProcessingConfig.java
Merge pull request #109 from nmusienko/master

Fixed support of the old  XML configuration