• fix --enqueue option timeout handling
• subvolume: remove support for undocumented options -c and -x, functionality disabled in kernel
• libbtrfsutil:
  • version 0.1.3, backward compabile
  • add aliases for all existing functions with unified naming scheme
  • updated header defintions for recently added kernel features
• send: v3 supported in experimental mode
• other:
  • docs: manual page references, graphs, enhancements, clarifications
  • error handling fixes
  • cleanups and refactoring