fixes #209
update to GitVersionTask
updated nuspecs
Revert "updated nuspecs"

This reverts commit 88e7a5ec5791f8bfaeb1fb5c2d041b549d3a3a18.
Revert "update to GitVersionTask"

This reverts commit 9e4cc8339dc10a99a9e2c1c44720b61237df9c24.
Merge branch 'hotfix-5.3.9' into support-5.3