Documentation|libdeng2|Bank: API doc clarified
Refactor|libdeng2: Revised Bank cache implementation

Cache levels are now represented as objects that track the amount
of data on the level. This clarifies the logic of moving items
been cache levels, and allows future configurability of levels.
Documentation|libdeng2|Writer: API doc improvements
libdeng2|ArchiveFeed: Prune items based on entry status info

Implemented a @todo in ArchiveFeed.
Refactor|libdeng2|FileSystem: Better subfolder creation mechanism

When the file system is asked to create a folder or a tree of folders,
the new subfolder can automatically inherit feeds from their parent
folder. This removes need for special purpose logic in the existing
feeds.
libdeng2|FileSystem: Cleanup
libdeng2|Folder: has() method allows a path as parameter
Fixed|libdeng2|Bank: Operating the serialized cache

Also, in non-threaded mode, notifications are done after a job is
complete.
libgui|Image: Support serialization in de::Image