Introduction of the modernizer plugin

See https://github.com/andrewgaul/modernizer-maven-plugin
Version updates
Fix concurrent methods resolution
Merge pull request #222 from Artpej/fix/concurent-method-resolution

Fix concurrent methods resolution
Fix ClosureCallSupport to consider types besides Object
Add test to call closure with types besides Object
Merge pull request #225 from jponge/feature/modernizer-checks

Introduction of the modernizer plugin
Merge pull request #228 from MakeNowJust/fix/closurecallsupport

Fix ClosureCallSupport to consider types besides Object