Version 0.16

Enhancements

• OutputTask signals end via "inputs-stopped" signal
• InputTask: Improve performance
• Add ufo_buffer_set/get_layout and pass through

Fixes

• Better error propagation
• Fix #116: allow _get_requisition to report errors
• Fix #130: add ufo_buffer_swap_data interface
• Fix #143: invalid object dereference
• Fix #145: remove sphinx-tabs dependency
• Fix #146: multi GPU expansion broke
• Fix #147: do correct comparison
• Fix #148: re-write longest path algorithm
• Fix #154: add UFO_RESOURCES_CHECK_SET_AND_RETURN

Breaks

• Remove _with_opts functions
• Retire ufo_graph_{{shallow_}copy|subgraph,flatten}
• Raise GLib version to 2.38
• Remove address options from CLI tools
• Remove daemon and messenger API