Merge pull request #1 from JohnDMathis/master

Add DelegateCard method
Added expression to deal with requests for Cards that aren't present on the local version of the board (e.g. because they are in archive); also bugfix -- user assignment event at task card creation causing exception.
Merge pull request #2 from ppinck/master

Added expression to deal with requests for Cards that aren't present on ...
If a user is not found, try refreshing the board
reflects upstream fix 4200771c
Fixed bug where attachment events on backlog cards triggered an exception
Merge pull request #3 from ppinck/master

Bugfix -- exception thrown when CreateAttachmentEvent fired against backlog card
Revert "If a user is not found, try refreshing the board"

This reverts commit 4200771c38c62e6dfa30a2276bf39f52b96f0a6f.
Normalize tabs
Add settings parameter to LeanKit Integration

- Change allows for polling frequency to be specified
Upgrading nuget packages

- Newtonsoft 6.0.3
- RestSharp 104.4.0
Fixed nuget package references