* Initial grouping of messages_en.yml (thanks to input by @Twonox)
* Change MessageFileVerifier to only do verification - no writing
* Create classes for sorting and grouping messages as per the messages_en file
- Create tool task to generate a doc page with the generated config.yml
- Rename tools.utils.FileUtils to FileIoUtils to avoid naming conflict with fr.xephi.authme.utils.FileUtils
- Make all doc tasks output a success message at the end
- Update all docs pages that have changed
- authme.cache to authme.data
- Rename PlayerData to LimboPlayer to match with LimboCache
- Move authme.converter to authme.datasource.converter
- Split output package into output and message
- To check a single file just enter the language file, e.g. "es"
- Pass File object to MessageFileVerifier instead of String path that will be constructed to a File again...
- Make verification task add todo comments to YML files in the same order as the MessageKey enum
- Use DefaultCharsets everywhere instead of Guava's Charsets class (thanks to DNx5)
- Classes still won't be present in JAR but classes will be automatically compiled by Maven inside of the test scope, facilitating the execution of tool tasks
