* pkg/cwhub: package documentation
* Don't repeat local state in "cscli... inspect"
* lint
* use proper name of the hub item instead of the filename for local items
* hub update: avoid reporting local items as tainted
* simplify GetItemByPath
* hub: sort version numbers by semver
* replace golang.org/x/mod/semver with github.com/Masterminds/semver/v3 (would not compare correctly)
* fix nil dereference with tainted items
* update tests for collections, postoverflows
* fix nil deref
* don't fallback to master if hub is not found, improve message
* explicit message for unknown version / tainted collections
* unnecessary pointer type
* ParseIndex() as hub method, don't collect missing items since they are never used
* don't export hub.parseIndex(), hub.downloadIndex()