Fetch steps to İoE automatically

[whatmusicreallyis]

The number of Steps To Equivalence Interval of the Enumerate Scale option should automatically follow the number from the second (uncommented) line in the Scale (Scala format) input field.

! 7-JI Rast Maqam.scl
!
Terpstra Keyboard WebApp | 7-JI Rast Maqam / Eight Echos — Bosanquet / Wilson / Terpstra
7
!
9/8
27/22
4/3
3/2
27/16
81/44
2/1

If no İnterval of Equivalence is defined (i.e. second uncommented lines missing), the algorithm should count the number of tones and use that in equivSteps.