TODO for root and shared
  * fitter: abstraction-scoped, class-selective compatibility control
  * fitter: fittterstate map
  * hammerfile, hammergui: version control

DONE for root and shared

with cyclone alpha55
  * new module: messtree
  * qtree:
    . nodes of a custom tree may be caller-owned: a caller may pass 0 as
      nodesize to qtree_initcustom() and pass pre-allocated nodes to
      insert/multiinsert calls
    . new calls: qtree_override(), qtree_closestunder(), qtree_closestover()
    . all "closest" calls report a diff between key requested and key found
  * os: new calls (dummy under MSW, though): osdir_open(), osdir_setmode(),
    osdir_close(), osdir_rewind(), osdir_next(), osdir_isfile(), osdir_isdir()
  * loader: new calls, unstable_dirload_lib(), unstable_dirload_all()
  * fitter:
    . added "test" hook (as a first step towards a fittterstate map)
    . new calls: fitter_getfloat(), fitter_getsymbol()
  * fragile: new call fragile_class_getexterndir()
  * loud: loud_syserror() accepts a format string
  * support for building into subdirectory of the main bin directory
    (so that a library may automatically load all its plugin externals)

with toxy alpha18
  * plusbob: stubifying t_plusbob, in order to minimize memory leak to 4 words

with rafts prealpha1
  * new module: patchvalue

with toxy alpha17
  * scriptlet: new call scriptlet_newalike()

with cyclone alpha54 and toxy alpha16
  * props:
    . code cleanup
    . new calls: props_getfirst(), props_getnext(), props_diff(),
      props_clearall(), props_clearvalues()
    . props_add(): additional argument 'filter' (skip exact input-filter copies)
  * fragile: new call fragile_class_getnames()
  * hammereditor:
    . hammereditor_append() accepts unbalanced braces
    . defaults to dirty, if (older) tk misses edit command

with cyclone alpha53
  * binport: added half-byte #symbol id
  * hammereditor:
    . fixed closing by window manager
    . dirty flag bound, shown and observed (unless in viewer mode)
    . title specification simplified and standardized
    . bug fix: incomplete transfer from editor

with cyclone alpha52
  * fragile: class name resolution based on voluntary mutation and raising
  * fitter: mirroring removed
  * new module, os: opening files, parsing path
  * hammerpanel: two modes of -initialdir persistence
  * more mingw fixes

with cyclone alpha51
  * new module, fitter: encapsulates compatibility support (formerly in maxmode)
  * fitter: per-class callback and mirroring interface to compatibility mode
  * mingw fixes

with toxy alpha14
  * scriptlet: version control (verslet_ routines)
  * debug printout restricted to krzYszcz, sent to stderr

with cyclone alpha50
  * bug fixes
    . hammertree crasher (affecting funbuff and offer)
    . MouseState/toxy clash
  * builds with gcc3 by default (no need to edit Makefile.common)
  * midi file code has been cleaned, now ready for using in qlist