[gtksourceview] (13 commits) ...Merge branch 'jefferyto/gtksourceview-js-cleanup'

[Christian Hergert <chergert src gnome org>]

Summary of changes:

  baef58a... javascript.lang, typescript.lang: Rename "false-clause" con
  c42b039... typescript.lang, objj.lang: Add missing close context comme
  0cd0c5b... javascript.lang, typescript.lang: Pluralize context ids
  9499024... javascript.lang, typescript.lang: Add once-only="true" for 
  b70bd73... javascript.lang: Fix comma operator inside ternary operator
  9309507... javascript.lang (and family): Clean up regular expressions
  74c1338... javascript.lang, typescript.lang: Use <match> for single ke
  b4820eb... javascript.lang (and family): Replace word boundaries with 
  f98232d... javascript.lang (and family): Set prefix/suffix for keyword
  0c1cf89... javascript.lang (and family): Add boundary test at start of
  b73063e... jsx.lang: Remove unused context
  6544e56... javascript.lang (and family): Update copyright
  02be7aa... Merge branch 'jefferyto/gtksourceview-js-cleanup'