+ * apt-pkg/pkgcachegen.cc:
+ - refactor MergeList by creating -Group, -Package and -Version specialist
+ - share description list between "same" versions (LP: #868977)
+ This also means that descriptions are shared across archives now.
+ - add implicit dependencies needed for Multi-Arch at the time a Version
+ struct is created and not at the end of the cache generation
+ * apt-pkg/pkgcache.cc:
+ - always prefer "en" over "" for "en"-language regardless of cache-order