Merging conflicts between master and dev (Azure#3733)

Remove space from tags in module manifest

Merge pull request Azure#3602 from markcowl/change370

Update changelogs for 3.7.0 release

Merge pull request Azure#3534 from cormacpayne/release-3.6.0-fix

[Release 3.6.0] Fix build error with Network project

Merge pull request Azure#3480 from cormacpayne/release-3.5.0

[Release-3.5.0] Update module version for Compute

Merge pull request Azure#3396 from cormacpayne/release-3.4.0

[Release 3.4.0] Update change logs and psd1 files for release

Merge pull request Azure#3396 from cormacpayne/release-3.4.0

[Release 3.4.0] Update change logs and psd1 files for release

Updating ChangeLog.md for the release 1.2.8 (Azure#3378)

Signed build from Azure Stack release branch

Updating Nuget.exe that is supported on Test Gallery (Azure#3290)

* Updating Nuget.exe that is supported on Test Gallery
* Adding signed copy of nuget.exe 3.4.4.1321 that is currently being used by PS branch
* adding nuget feed into build.proj. Adding diagnostic logs to PublishModule.ps1
* Updating nuget package restore directory for product and test
* Updating packages paths for tests
* Repacking after updating signed nuget package by adding psm1 dependency to the module. If not done, Test Gallyer/PS Gallery will fail to accept the package when try to push the nuget package as the package contents have changed after signing it
* Updating the copy of nuget exe that would repack nuget during build process. Test Gallery is still v2 based, hence will not accept any other version of nuget.exe while pushing/publishing it to Test Gallery.
* Adding more logging in publish module. Adding null check for unregistering Repositories at the end of PublishModule