Bug fixes

• Fix the symbols tree hierarchy when several tags have the same name
  (PR#1598).

Interface

• Add a tooltip showing the full path on menu items representing documents
  (PR#1706).
• Add a note for applying the indent settings in the project preferences
  (PR#1650).
• Enable popup menu on sidebar and message window notebooks (PR#1726).
• Show status message on attempt to execute empty context action
  (Lars Paulsen, PR#1642).
• GTK3 theming improvements and documentation (PR#1382).

Filetypes

• CSS: Update Grid properties (Issue#1705).

Internationalization

• Updated translations: de, el, es, fr, it, lv, pl, pt, tr, ru, zh_CN