Merge pull request #1807 from microsoft/release/5.0.7

Start new 5.0.7 version

Merge pull request #1791 from microsoft/release/5.0.6

Start new 5.0.6 version

Start new 5.0.5 version (#1783)

Sign packages (#1779)

Merge pull request #1754 from microsoft/release/5.0.3

Start new 5.0.3 version

Merge pull request #1741 from microsoft/release/5.0.2

Start 5.0.2 version

Merge pull request #1708 from microsoft/release/5.0.1

Start new 5.0.1 version

Merge pull request #1700 from microsoft/release/update-demos

Bump version in demo apps

Merge pull request #1684 from microsoft/fix/pack-script

Fix packaging script - do not rebuild assemblies during packaging

Merge pull request #1665 from microsoft/release/4.5.3

Update version to 4.5.3