upgrade HDInsight SDK version to 1.3.1.2
Update packages and change version numbers
remove app.config files
Merge pull request #2849 from markcowl/release-0.8.7.1

Update packages and change version numbers
Merge pull request #2851 from shuainie/release-0.8.7

upgrade HDInsight SDK version to 1.3.1.2
Add changes for release 0.8.7.1
Added space
Merge pull request #2853 from Azure/release-0.8.7.1

Release 0.8.7.1 - Merge release -> master
Merge pull request #2854 from Azure/master

Merge master -> dev for 0.8.7.1 release