Improve .gitignore file with gradle and Idea files.
Improve .gitignore file with gradle and Idea files.

cocolocomoco21/ULCRS,cocolocomoco21/ULCRS,cocolocomoco21/ULCRS,cocolocomoco21/ULCRS,cocolocomoco21/ULCRS,cocolocomoco21/ULCRS