vala 0.38.10 release.

Various improvements and bug fixes:

• Warn if --gir is used without --library [#708693]
• Report an error if rank attribute is required but was not found [#660991]
• scanner: Accept \R and \N escape sequences in regex literals [#749576]
• scanner: Accept backreferences \1 through \99 in regex literals [#728574]
• codegen:
  • Avoid critical in get_basic_type_info() when there is no signature [#729517]
  • Fix serializing multidimensional arrays [#735437]
  • Guard get_default_ref_sink_function() against null base-class
  • Respect cname ccode-attribute of lockable fields
  • Fix casting of length for "ref" array parameters
• girparser: Add support for NoAccessorMethod metadata
• girparser: Deal with missing "name" attribute by falling back on "c:type"
• girwriter: Drop errornous indent
• girwriter: Properly output variadic methods and use introspectable="0"
• genie: Add support for the \v escape character [#664689]
• genie: Add support for the \uXXXX escape sequence

Bindings:

• glib-2.0: Fix IConv.iconv() [#634753]
• glib-2.0: Mark str parameter of Variant.take_string() as owned
• gobject-2.0: Make constructor of ParamSpecBoxed public
• gstreamer: Cherry-pick some fixes from 0.42
• gtk+-.0: Set NoAccessorMethod on Gtk.Radio.group properties
• javascriptcoregtk-4.0: buffer of String.get_utf8_cstring() is not "ref" [#788113]
• json-glib-1.0: Mark return-type of gvariant_deserialize*() as nullable [#795265]
• sqlite3: Add additional constants for flags of Database.open_v2() [#795627]
• webkit2gtk-4.0: Update to 2.20.1 and cherry-pick some fixes from 0.42

vala 0.38.9 release.

Various bug fixes:

• valac: Always use the given "pkg-config" and respect PKG_CONFIG envar
• codegen:
  • Don't append fixed-length of array fields in initializers
  • Add source_reference to some store_local/_field() calls
  • Don't add target fields for captured delegates without target
  • Don't add length fields for captured fixed-length array variables
• Properly handle array-initializers inside struct-initializers [#622178]
• The rank of an array-initializer should match the target's rank [#744923]
• Fix recursive declaration in generic base type [#688732]
• valadoc: Bump glib_minor to match 0.38 series
• gdbus: Fix missing declaration of _fd_list for async methods [#794566]
• vala: Fix return-type of BasicBlock.get_successors()

Bindings:

• glib-2.0: Use g_value_et_schar instead of deprecated g_value_et_char
• gobject-2.0: Add ParamSpecGType
• gobject-2.0: Cherry-pick some changes from 0.40
• gstreamer-1.0: Update to 1.14.0 and add gstreamer-webrtc-1.0 bindings
• gdk-3.0,gtk+-3.0: Update to 3.22.29
• gtk+-.0: Fix iter parameter of TextView.backward/forward*/move_visually() [#794345]
• gtk+-*.0: Hide dedicated constructors of compact classes bound as structs [#794733]
• gtk+-3.0,gtk+-4.0: Fix TreeView.is_blank_at_pos()
• libgnome-menu-3.0: Add deps file
• posix: Fix sig*set and sigprocmask parameters to be out/ref [#727425]
• posix: Include sys/sysmacros.h for major(), minor() and makedev() [#794651]
• purple: Update to 2.12.0
• webkit2gtk-4.0: Update to 2.20.0