* adds channel for getting node out of lookup
* WIP adding the channels to lookups
* WIP adding channel to node lookups
* Wires up FindNodes method with channels
* WIP adds a test suite for lookup - tests are still failing
* WIP wires up use of testplanet for kademlia lookup tests
* WIP merging in node id changes
* Merges in pkg/storj node type changes
* Tests passing
* Lookup node working via Inspector now
* updates
* WIP working on getting tests passing
* WIP getting tests passing
* FindNode works
* Linter fix
* Adds copyrights to lookup_test
* removes a fmt.Printf I missed
* Removes commented out lines
* Pulls statdb stats into overlay cache whenever cache.Put() is called
* Updates overlay.FindStorageNodes()/overlayClient.Choose() to filter based on node stats
* Updates overlay.FindStorageNodes()/overlayClient.Choose() to exclude duplicate IP addresses
* preparing for use of `customtype` gogo extension with `NodeID` type
* review changes
* preparing for use of `customtype` gogo extension with `NodeID` type
* review changes
* wip
* tests passing
* wip fixing tests
* more wip test fixing
* remove NodeIDList from proto files
* linter fixes
* linter fixes
* linter/review fixes
* more freaking linter fixes
* omg just kill me - linterrrrrrrr
* travis linter, i will muder you and your family in your sleep
* goimports everything - burn in hell travis
* goimports update
* go mod tidy
