Updating java SDK file to call out Python

...which got missed earlier
Mobile: Fixes for the iOS .NET backend push tutorial
Merge pull request #6436 from Azure/FromPublicRepo

From public repo
Removed steps to create an account and pointed users to the documentdb-create-account topic, also added a KEYS screencap.
Merge pull request #6439 from mimig1/master

Removed steps to create an account and pointed users to the documentdb-c...
correct text left over from copying blobs article
Merge pull request #6440 from tdykstra/patch-1

correct text left over from copying blobs article
Updated per feedback
Merge pull request #6441 from Selcin/master

Updated per feedback
Adding related video to this topic.
download page for chappell whitepaper
Merge pull request #6443 from HeidiSteen/HeidistMaster

download page for chappell whitepaper
Merge pull request #6442 from Erikre/patch-5

Adding related video to this topic.
Adding related video to this tutorial.
Merge pull request #6444 from Erikre/patch-6

Adding related video to this tutorial.
moved comments below title
Merge pull request #6447 from stevestein/SQLDBPreview_17.14

moved comments below title
Updating with newer content
Merge pull request #6448 from stevestein/SQLDBPreview_MondayEdit2

Updating with newer content
Mobile: minor tweak to iOS push tutorial