Merge pull request dotnet#1550 from leecow/master

fix blob url in releases.csv - remove space

2.1-rc1 API diff between preview2 and rc1

Merge pull request dotnet#1460 from leecow/master

correct affected package list

Merge pull request dotnet#1460 from leecow/master

correct affected package list

Merge pull request dotnet#1460 from leecow/master

correct affected package list

Merge pull request dotnet#1460 from leecow/master

correct affected package list

Merge pull request dotnet#1419 from leecow/master

Preview 2 download page

Merge pull request dotnet#1345 from preetikr/master

1.0.10-1.1.7-2.06 Updates - json updates

Merge pull request dotnet#1345 from preetikr/master

1.0.10-1.1.7-2.06 Updates - json updates

Merge pull request dotnet#1313 from leecow/master

formatting fixes in 2.1 release notes