Drupal 8.x

I've come across something just recently, I'm not sure what it is, and I'm not even sure how to go about "Googling it". 

As I've been working to modify some CSS, I've come across an image, with a long number following it. For example:

url('../images/background-img.jpg?1487047946') white;

What is the number for? Attempts to Google it just get responses to "What is .JPG" or the like.

Thank you for the help.

Hello, I just have a simple taxonomy and output nodes using views. I just have a simple image in the body with a paragraph or two of copy. Don't need the READ MORE and can't find out how to turn off. If anybody knows, please tell me.

Thanks

Hi Team,

         Blur event is getting fired multiple times in D8. The steps to reproduce the issue.

Note :- Try in chrome, since the issue comes only when auto-fill happens.

1. Create a simple form with username and password field.
2. once after the form is submitted the chrome will ask to save the credentials, save it.
3. create a blur event for the username field and provide an alert for the blur event.
3. Try refreshing the page now , you can see the multiple alerts.

Hello,

One of my clients would like to change their meta description, but I can't help him because I also can't change the description. It seems that there is no extension installed for changing the meta description. To be honest, there was the RDF module, but after deinstallation and cache clearing, the meta description is still there. Maybe I have to make changes in the database or in the system files?

I also tried to install the metatags extension, it works fine. But then I have two meta description in the source code.