Update to 6.3.1

Changelog:
---- Version 6.3.1 - 11/04/29 ----

Handle microtonality in tablatures.
Compilation problem when no pango
	(reported by Guido Gonzato).
Add more output annotations.
Add more PS symbols in the svg PS interpreter.
Fix bad SVG output.
Fix the help for SVG output.

---- Version 6.3.0 - 11/04/24 ----

Crash when global texts and '-e' != first tune with '-E' or '-g'.
Crash when PS buffer overflow with '-E' or '-g'.
Crash when %%oneperpage or %%splittune with '-E' or '-g'.
Fix lanscape mode for EPS.
Fix EPS bounding box when %%scale in tune.
Add the '-g' command flag (SVG output).

---- Version 6.2.13 - 11/04/18 ----

Add the '-S' command flag (secure mode)
	(asked by Bart Humphries).
Don't ignore the normal newlines when '!' found as newline
	(asked by Hudson Fl叩vio Meneses Lacerda).
Add more information for tune index creation (second and third titles)
	(asked by Paul Hardy).

---- Version 6.2.12 - 11/04/04 ----

Fix some compilation errors.
Crash due to memory allocation bug.

---- Version 6.2.11 - 11/04/03 ----

Bad text justification without pango
	(reported by Hudson Fl叩vio Meneses Lacerda).
Bad PostScript output when empty line at end of justified text
	(reported by Hudson Fl叩vio Meneses Lacerda).
Bad note length when bad tuplet at end of line and multi voices.
May have tuplet with one note.
Crash when new voice starting with a key signature.
Optimize the memory allocation.

---- Version 6.2.10 - 11/03/06 ----

Remove test '%%fmt ...'.
Do pango output for filled and justified text.
Better pango output.
Remove %%pangoembedded.
Bad horizontal offset of centered or right aligned texts.
Bad stem direction in some cases since 6.2.8
	(reported by Hudson Fl叩vio Meneses Lacerda).
Bad font after new page when text with '$n".
Bad (latin1) UTF-8 character width.
Fix loss of space in justified text
	(reported by Hudson Fl叩vio Meneses Lacerda).
Fix link error with last versions of pango.


(ryoon)