[ddrescue] Fix that ugly typo.
[blockcache] s/clear/destroy/g (DMD 2.066)
[blockcache] Moved unmap() to CachedPage.
[blockcache] Removed debug messages.
[blockcache] More docs, better doc formatting.
[blockcache] Correctly handle CachedStruct with offset within block.
[blockcache] requestStruct overloads with file offset and with no mapping.
[blockcache] Unit test MemMappedExtent.opAssign().
[blockcache] Allow mappings to live after the cache is cleaned.
[blockcache] Default cache capacity changed to something more reasonable.
[blockcache] Added some contracts.
[blockcache] CachedStruct._s made public for alias this to work outside this module.
Added some ext4 struct definitions and class Ext4 which provides access to the fs (meta)data.
[doc] Nicer visual style and navigation.
Updated .gitignore.