[gtk] (15 commits) Created branch matthiasc/for-master

[Matthias Clasen <matthiasc src gnome org>]

The branch 'matthiasc/for-master' was created.

Summary of new commits:

  07a3fb8... textlayout: Remove some unnecessary code
  67ee6b2... textlayout: Don't call render_para too much
  214e2d1... textbtree: Avoid malloc in one place
  a936144... textbtree: Speed up _gtk_text_line_char_index
  d731ce4... textbtree: Don't opencode realloc
  0334d00... textbtree: Speed up _gtk_text_btree_find_line_top
  58e44e2... textbtree: Inline node data handling
  5b8bf04... texttag: Just use qsort
  b0df891... textlayout: Only get selection color once
  d719a3d... textbtree: Return tags in a GPtrArray
  5b0ea70... textattributes: Small docs fix
  2af99bd... textlayout: Create the cursor snapshot on demand
  b32cd5d... textlayout: Introduce some locals
  6cf7125... textlayout: Avoid allocations for line iteration
  89e94d9... ngl: Fix an oversight