Merge pull request #3 from esparta/master

.gitignore file
Since there is no way (yet) to autogenerate src/images, lets keep the folder
to ease local installation
Don't let add more than one metro
Removing console.log
Solve issue with bogus id for metros.
Using forEach in search function
Merge pull request #4 from esparta/no-repeat

Don't let add more than one of the same metro