comments for build sublists
Merge branch 'master' of https://github.com/ikeough/Dynamo into 01_31_comments
Addresses https://github.com/DynamoDS/Dynamo/issues/1081 and MAGN-1184
Merge branch 'master' of https://github.com/ikeough/Dynamo into 01_31_comments

Conflicts:
	src/DynamoCore/Nodes/dynBaseTypes.cs
updated comments in topography
updated node descriptions for topography
Merge pull request #1083 from mccrone/01_31_comments

topography_commentsAndCategories