Adding info about injection by constr or field
Removing info about validation because the page don't have info about validation
Docs about contributions, closes #539
Fixing code sintax
Fixing more markdown sintax
More examples about converters
Adding info about Java 8 and Javassist
Adding CDI example
More info about dependencies
Adding text about mirror and iogi
Improving validation docs
Adding page about validations/EN
Plugins doc improvement
Adding page about events (EN)
Adding page about events (EN)
Adding links to help us to create menu on EN docs
Typo
Adding environment page (EN)
Fixing menu link
Adding docs about how to contribute (EN)