VolumeSnapshots cmdlet,, add APIHref
Merge branch 'master' of https://github.com/patrickmcclory/RightScaleNetAPI

Conflicts:
	RightScale.netClient/Packages/RightScaleNetClient/RightScale.netClient.Powershell.dll
	RightScale.netClient/Packages/RightScaleNetClient/RightScale.netClient.dll
	RightScale.netClient/RightScale.netClient.Powershell/Types.cs