translated guide/conf/dependencyResolution/changingDependencies.gdoc
translated GORM/advancedGORMFeatures/ormdsl/databaseIndices.gdoc
Updated docs from original.
translated guide/spring/springdslAdditional.gdoc
translated guide/hibernate
updated from the latest doc.
translate guide/spring/theBeanBuilderDSLExplained.gdoc
updated to latest.
translated GORM/advancedGORMFeatures/ormdsl/optimisticLockingAndVersioning.gdoc
refined topic titles for testing at toc.yml
translated guide/testing/unitTesting/unitTestingFilters.gdoc
translated additional part of guide/theWebLayer/controllers/dataBinding.gdoc for 2.3 and tweaked a little

And fixed an original mistake in guide/theWebLayer/controllers/dataBinding.gdoc
It's been already fixed by https://github.com/grails/grails-doc/pull/138 at grails/grails-doc.