Fix drag and drop of priority field in quickbug.
Merge branch 'master' of github.com:foam-framework/foam
Quick Bug 1.20.3
Add LazyFactory support to properties.  Factories that only get called the first time the property is accessed.
Switch MBug to an LRU caching model to save on startup time and memory usage.
Merge branch 'master' of github.com:foam-framework/foam