better performance at the time of selecting long ranges of dates

Signed-off-by: Ruben Mendez <ruben.mendez@gmail.com>
better behavior of dates selection

Signed-off-by: Ruben Mendez <ruben.mendez@gmail.com>
deleted unnecessary methods

Signed-off-by: Ruben Mendez <ruben.mendez@gmail.com>
better performance of bounce animations

Signed-off-by: Ruben Mendez <ruben.mendez@gmail.com>
Merge pull request #13 from minube/Development

Development