vala 0.36.1 release.

Various bug fixes:

• Always consider a method compatible with itself [#773135]
• Perform arguments-check against actual .end() method-signature [#684208]
• Slightly improve lamdba-expression error on target-type mismatch
• Fix delegate initializer for instance fields [#683925]
• Don't leak target-reference when casting/assigning owned delegates [#780426]

GIR parser and writer:

• girparser: Add destroy argument for metadata [#750838]
• vapigen: Add --nostdpkg option like in valac

Bindings:

• gstreamer-1.0: Fix Pad.set_*_function() bindings [#750838]
• glib-2.0: Add missing version macro and constants, unichar.to_string doesn't return null
• gtk+-2.0,gtk+-3.0: Mark "intersection" param of Widget.intersect() as out
• gtk+-4.0: Update to 3.90.0