don't show hidden tag information
Merge pull request #1270 from yugangw-msft/filterHidden

don't show hidden tag information on group/resource show
update release files
add more change information
mention new php version in changelog
Merge pull request #1271 from yugangw-msft/releaseversion

Update release files
Merge pull request #1272 from Azure/dev

Integrate a csm tag bug fix from dev to release 0.8.6