Fix fret ruler extension parsing scales

extensions/fablabchemnitz/fret_ruler/scales/fj-90tet.scl

@@ -0,0 +1,95 @@
+! fj-90tet.scl
+!  
+Franck Jedrzejewski continued fractions approx. of 90-tet 
+ 90
+!  
+130/129
+65/64
+44/43
+33/32
+53/51
+22/21
+19/18
+67/63
+15/14
+27/25
+37/34
+34/31
+21/19
+88/79
+55/49
+69/61
+57/50
+85/74
+22/19
+7/6
+67/57
+77/65
+37/31
+77/64
+40/33
+11/9
+16/13
+67/54
+5/4
+63/50
+33/26
+87/68
+49/38
+13/10
+55/42
+95/72
+121/91
+67/50
+27/20
+83/61
+48/35
+76/55
+39/28
+80/57
+99/70
+57/40
+56/39
+55/38
+35/24
+97/66
+40/27
+100/67
+3/2
+97/64
+84/55
+20/13
+76/49
+25/16
+63/40
+27/17
+8/5
+79/49
+13/8
+18/11
+33/20
+128/77
+62/37
+27/16
+17/10
+12/7
+19/11
+47/27
+93/53
+122/69
+98/55
+79/44
+38/21
+31/17
+68/37
+50/27
+28/15
+47/25
+36/19
+21/11
+25/13
+64/33
+43/22
+65/33
+129/65
+2/1