Merge pull request #1 from PerfCake/master

updated pom.xml
drop handler refactoring
destination/reporter now initially enabled
drop handler refactoring, empty components solved
missed drop handler refactoring
renamed and implemented
wizard working
missed model set up fixed
fixed multiplicity bug
implemented validatorRef visualization in table
added warning if attached validator is modified
created & implemented
implemented attach validator
implemented validator id uniqueness
implemented validation, messages sync
missed table model set up
minor change
attach validator drop implemented
dependency layer implemented
set line stroke and color