Fix lint build
Merge pull request #992 from brutasse/fix/lint

Fix lint build
Added Instagram

Added Instagram to the "Who is using Graphite" list
Removed YouTube link
Merge pull request #993 from ramuta/patch-1

Added Instagram
Update who-is-using.rst
Merge pull request #998 from leizha/patch-1

Update who-is-using.rst
Sort who-is-using.rst
Add GitHub
rst is silly
Merge pull request #999 from jssjr/add_github

Add GitHub to who-is-using.rst
add Dyn
Merge pull request #1000 from obfuscurity/master

add Dyn
Add information about `graphite-beacon`

Hello, I have wrote a little tool which can be useful I think. It is https://github.com/klen/graphite-beacon, please guys take a look.

And sorry for my English.
Update tools.rst
Respect order.
Remove an extra newline
Sort links
Merge pull request #1007 from klen/patch-1

Add information about `graphite-beacon`