Merge pull request #1 from jonavargas/Jona

Jona
Merge remote-tracking branch 'origin/Jona'
Merge pull request #2 from jonavargas/Jona

Required fields
Merge branch 'master' of https://github.com/jonavargas/ISW
Expresiones Regulares
Merge pull request #3 from jonavargas/Bryan

Expresiones Regulares
Merge remote-tracking branch 'origin/master' into Jona