Problem reported by stsp: 9999j would tie up tog till completed. While here, trim trailing whitespace in tog.1 and make C-g alias existing backspace abort key map for search and G in log view. ok op@ and stsp@

With this, hsplits are now available to the same parent/child view combinations as vsplits. Includes OB1 log truncation fix from op@ that was reported by stsp. ok stsp@

Suggested by naddy. block till non-numeric input is entered, and don't echo in bold. ok naddy@ op@ and stsp@

suggested by and ok op@

ok jamsek

Make the choice of diff algorithm configurable by diff API users. The got and gotweb programs keep using Patience diffs which are prettier than Myers. But tog should be as fast as possible since it is being used interactively. If performance of Patience diff gets improved later we can consider switching tog back over to it. ok tracey jamsek

Account for the border so we don't scroll offscreen, and don't unset the load_all flag till all commits have been loaded so we take the correct path in log_move_cursor_down(). ok stsp@

ok jamsek

Enable all main views to open primary child views in a horizontal split: log -> diff tree -> blame blame -> diff ref -> log Support is yet to be expanded to nested child views and key maps for manipulating split type and size. ok op@ and stsp@

Simplify the log input handler by moving (page)up/down and home/end logic into helper routines as we need to perform some checks on these cases when navigating the log view in horizontal splits. ok op@ and stsp@

Reported by jamsek: $ tog # term wide enough to vsplit return # open commit f # fullscreen commit tab # should go to fullscreen log, but it splits the screen fix ok jamsek

ok jamesk

ok tracey