Merge branch 'release-0.8.1' of github.com:WindowsAzure/azure-sdk-tools into release-0.8.1
update changelog for 0.8.1
update the date
Merge pull request #2498 from guangyang/release-0.8.1

update changelog and readme
Initial port
Port TAB completion feature over
register resoyrce provider for caching
Merge pull request #2512 from yugangw-msft/portcache

Port managed cache commands over
Update ChangeLog.txt
handle to instal lwix
improve the script
remove useless status message
Merge pull request #2524 from Azure/release-0.8.1

Release 0.8.1
Upgraded ResourceManager and Microsoft.IdentityModel.Clients.ActiveDirectory packages to latest
Changed Subscription.json to point to production Sandbox
Added support for interactive mode AD in mocks
improve script on detecting product installation
Re-recorded tests
Prompt when there is data loss on update cache service
Merge pull request #2532 from yugangw-msft/datalossprompt

Prompt when there is data loss on update cache service