DOCS: remove UI element namespaces
TESTS: remove UI element namespaces
TOOLS: remove UI element namespaces
EXAMPLES: remove UI element namespaces
UI: IDL: remove UI element namespaces
UI: move parse_ui_file() into Application
Merge branch 'hide-xml-namespaces'

* hide-xml-namespaces:
  UI: move parse_ui_file() into Application
  UI: IDL: remove UI element namespaces
  EXAMPLES: remove UI element namespaces
  TOOLS: remove UI element namespaces
  TESTS: remove UI element namespaces
  DOCS: remove UI element namespaces