Merge pull request Azure#6080 from cormacpayne/fix-clean-start

[Release 6.0.0] Version updates and context population removal

Merge pull request Azure#5993 from Nilambari/preview2

Bump up network sdk version from 17.0.0.preview to 18.0.0.preview

Merge pull request Azure#6062 from AsrOneSdk/cikTokenFix

[RecoveryServices][SiteRecovery] CIK token serialize using System.Web.Script.Serialization.JavaScriptSerializer.

Merge pull request Azure#6038 from maddieclayton/docsfix

Fix module help pages

Merge pull request Azure#5845 from praries880/vmMSI

Adding parameters to New-AzureRmVm and New-AzureRmVmss to assign

Merge pull request Azure#5717 from MiYanni/NetCoreCsProj

NetCore CsProj conversion tool

Merge pull request Azure#5857 from bulentelmaci/preview

Microsoft.PolicyInsights RP Powershell cmdlets

Merge pull request Azure#5880 from markcowl/netcore-011a

Bring in latest fixes to NetCore branch

Merge pull request Azure#5868 from cormacpayne/release-2018-04-06

[5.7.0] Update module version for April release

Merge pull request Azure#5778 from cormacpayne/release-2018-03-23

[5.6.0] Update versions for AzureRM 5.6.0 release