Gnumeric 1.12.48 Andreas: * Add axis title to chart in histogram tool. [#408] * Fix line end marker roundtrip through strict ODF * Improve export of line markers to ODF for interoperability * Improve line marker handling on import * Fix LaTeX export. [#489] * When reading an ODF file make all sheets of equal size. [#505] Jean: * Fix xlsx object non-import crash. * Fix in-place graph data problem. [#492] * Port to Python3. [#419] Morten: * Fix performance issue with sample_datasource. [#491] * Fix partial-line issue with sample_datasource. * Fix load of in-place graph data with extra ()s. [#492] * Fix Ctrl-; cursor position. [#494] * Fix ssconvert --merge-to problem. [#496] * Fix sheet size paste problem. [#497] * Speed up really large auto-filters. [#465] * Fix 2038 problem on quit. * Improve tests. * Improve dependency tracking for implicit intersection. [#501] * Fix format dialog issue. [#503] * Re-tune style quad tree. [#234] * Re-tune dependency bucket system. [#502] * Fix global name parsing problem with non-uniform sheet sizing. * Avoid style dependency redraw during file load. * Tend to dead kittens. * Fix metadata dialog. [#510] * Fix potential 64-bit problem with signals. * Fix GnmRange introspection. --------------------------------------------------------------------------