Merge branch 'master' into inlinec

* master: (39 commits)
  Revert "Remove unused vocabulary" -- committed patch from the wrong machine
  Remove unused vocabulary
  Fixing some test failures after url.encoding change
  FUEL: Font lock/indentation for M::.
  replace 2array "." join with "." glue
  contributors: exclude merges to make patch counts more reasonable
  alien.libraries: add remove-library word, fix dlclose and dll-valid? VM primitives
  alien.libraries: add dispose method for library tuple, and remove-library word; add-library first calls remove-library to properly close the library when reloading
  changed single byte writes to write1
  removed usages of sprintf
  fixed signed number decoding problem
  added >upper to push-utf8 to conform with RFC 3986 section 2.1. recommendation
  io.launcher: unnecessary word
  compiler.cfg.optimizer: fix irrelevant test
  compiler.tree.propagation: better length propagation
  compiler.cfg.linear-scan: fixing unit tests
  compiler.cfg.linear-scan: more code cleanups, and working on split-to-fit algorithm
  compiler.cfg.linear-scan: code cleanups
  compiler.cfg.linear-scan: split off parallel mapping code from resolve pass, use it in assignment pass to resolve parallel copies
  updated llvm.invoker test to use install-bc
  ...