[gnome-code-assistance] (19 commits) Non-fast-forward update to branch wip/completion

[Jesse van den Kieboom <jessevdk src gnome org>]

The branch 'wip/completion' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  d62848e... Added context parameter to Parse and ParseAll
  2bed0c1... Remove unused process function
  be41d39... Move Diagnostics under Document namespace

Commits added to the branch:

  ebf98d6... Added short list of backends and deps (*)
  ee27697... Added python deps for C backend (*)
  3e250d6... Add global system include dir if found (*)
  d2ded32... [backends/c] Fallback on ctypes find_library if needed (*)
  0680b15... [backends/c] Try both clang and llvm-clang to find sys incl (*)
  b349461... [backends/c] Remove debug statement (*)
  bf3a800... [backends/vala] Support libvala-0.26 (*)
  1449896... Release 3.14.0 (for GNOME 3.14) (*)
  126b578... build: add Vala 0.28 (*)
  e015907... css: fix css backend for scss api changes. (*)
  c11fed7... Update distributed sass to 3.4.9 (*)
  06ff53a... Only check files in index for generating makefile (*)
  b457fba... More specific ruby failure message (*)
  295c949... Check for specific minimum version of sass (*)
  71d54e4... Remove trailing whitespace from configure.ac (*)
  051b058... Only read dependencies from index (*)
  060ff28... Added context parameter to Parse and ParseAll
  c0dfe43... Remove unused process function
  4e7097d... Move Diagnostics under Document namespace

(*) This commit already existed in another branch; no separate mail sent