1.7.5

#625 / #983 Fixed report aggregation (thanks @therealryan and @aurelien-baudet)
#985 Handle empty surefire excludes
#993 Move rv mutators to external plugin
#994 / #995 Filter equivalent boxed return true mutants in try blocks
#968 / 997 Improve filtering of equivalent empty return mutants
#999 / 1003 New parameter to locate root of multi module projects

As a result of #993, anyone wishing to use the research orientated RV operators must configure the pitest-rv plugin

https://github.com/pitest/pitest-rv-plugin