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
Sort package manager search results by name, maintainer, votes, downloads
Add files to a package in the publish package dialog
Sort packages by most recent update, by default sort packages by most recent update in search
Small tweaks to speed up package manager search
Use more significant figures for metric conversions, fix for Issue #585
Merge branch '0.6.2' of https://github.com/ikeough/Dynamo into 0.6.2
Fix N2C defect MAGN-787
Merge remote-tracking branch 'upstream/ChocoButter' into ChocoButter
Add regress test case of MAGN-781
No empty CBN
Merge pull request #792 from ke-yu/ChocoButter

The changes look fine to me (with some assumptions from my side). In the interest of having this tested earlier, I am merging this in.
Empty code block node deletion with undo
Fix MAGN-786
Merge pull request #794 from ke-yu/ChocoButter

Fix MAGN-786: N2C should exclude the watch nodes
Fix spelling error (NodeModel.IsConvertiable -> NodeModel.IsConvertible)
Setting of preview variable
Return an empty list instead of an exception. The ASTBuilder will also
need to handle this by ignoring the CBN altogether if an error is
flagged
Merge pull request #795 from ke-yu/ChocoButter

Fix spelling error (NodeModel.IsConvertiable -> NodeModel.IsConvertible)
Merge pull request #796 from junmendoza/ChocoButter

CBN syntax error crash fix.