[vala] (21 commits) Non-fast-forward update to branch wip/manual

[Rico Tzschichholz <ricotz src gnome org>]

The branch 'wip/manual' 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:

  fda39cb... manual: Add version information and copyright to manual
  4694874... manual: Generate section and sub-section numbers
  58fccd5... manual: Add navigation links to top bar

Commits added to the branch:

  05f5f5f... signalmodule: Add signal-emitter declaration if needed (*)
  b5ae45e... signalmodule: Fix deprecation of signals (*)
  226f1a1... manual: Update timestamps of directory-targets (*)
  956ca6b... gtk+-3.0: Widget.override_* are deprecated since 3.16 (*)
  b3e02e1... gstreamer-1.0: Fix Gst.Base.Adapter.map/take bindings (*)
  494727c... girparser: Add metadata-support for "returns_modified_point (*)
  c4f2d48... gstreamer-1.0: Mark *.make_writable with "ReturnsModifiedPo (*)
  2924620... enchant: Minor fixes (*)
  38593b2... codegen: Fix base-access from within overriding struct-prop (*)
  dc456fc... Mark chained relational expressions as stable (*)
  616f945... vala: Disallow private accessors in overridable properties (*)
  e874bb7... class: Perform more thorough compatibility check of inherit (*)
  b7e86f6... codegen: Accessor of interface-property might be absent (*)
  2634b22... vapi: Update GIR-based bindings (*)
  7c0e02d... manual: Add version information and copyright to manual
  2b17b2f... manual: Generate section and sub-section numbers
  11f1b31... manual: Add navigation links to top bar
  fcd07dc... manual: Correct link to 'Expressions/Member access' in 'Sco
  4ff9ae6... manual: Add print target for single page HTML and CSS paged
  8a82eff... manual: Add pdf target that uses WeasyPrint
  dc19bc1... manual: Add a README about editing the manual

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