Merge pull request #774 from Benglin/master

The broken test case CanAdd1DListToExcelWorksheet is fixed locally, I would like to see how this behaves on the Jenkin machine, therefore accepting this merge.
Add defaults to loft node. Tweak port description.
Merge branch 'master' of github.com:ikeough/Dynamo
Update README.md
added warning to Wall and Floor nodes
Incremented to 0.6.3
Move logging directory into AppData for application

Move the logging folder into the same location as the pref file to
support deployments without write access to the binary location