U 1.3.2: readable fractal scale

The fractal child-scale readout now displays 55% without floating-point residue. Geometry, state transport and truth tables are unchanged.

[W] The browser regression failed before repair and passes at depths 0, 3 and 6 and in the actual offline download. All 46 Node tests, three runtime tapes, source checksums and Chromium/Firefox/WebKit interaction checks pass.
[R] Progress, coordinate and intersection readouts already use the existing number formatter; this repair applies it to the percentage too.

Download Run-U.html below, or open https://chuumind.com/u/run. SHA256SUMS.txt covers the downloadable HTML and LICENSE.