[doc] Updates to documentation for upcoming 1.0.0 release.
[ci] Added pmd and findbugs to the build in profile CI.
[ci] Added profile for pit mutation testing.

See http://pitest.org/
[ci] Moved static code analysis and mutation testing from profiles to main build to phase 'verify'
[ci] PMD rule finetuning - shouldn't trip on conscious project decisions.
Changes after implementing static code analysis.