saugns v0.3.10. Timing fixes. Rework timing modifiers. Changes of a few main varieties: 1. Fix compound step syntax used with nesting. 2. Fix some smaller timing-related bugs. 3. Rework timing modifiers, replace 's' (silence) parameter. 4. A few smaller syntax removals, and an addition. Fix a bug (design flaw) from 2011, which limited use of ';' for timing in a nested structure in a script. Previously, while scripts with "Osin p+[Osin; ...]" worked, scripts with "Osin p+[Osin; ... Osin; ...]" didn't. The bug affected timing, when more than one object (oscillator) used ';' combined with nesting, inside or after nesting rather than before nesting. Now that limitation is gone. New 'devtests/compnest.sau' script works now but not with earlier versions. (Note: The fix was backported all the way down to new "Debug compound..." commit.) Fixes for '-p' option duration reporting, and related things. This is the 3rd year in a row where timing bugs have been fixed in December-January, for whatever reason. Syntax changes: * Rename timing modifier '\' to '/', (reverses change from 2011-07-01). * Replace the old silent time padding 's' parameter with the new subshift '\' timing modifier, also a new feature (add delay only for a next sub-step). * Make '|' reset delay to add next step to duration rather than add it to delay from prior '/' usage. * Remove "default length time" ("t*", literal '*'), a so-far never-useful 2011 feature. * Remove "delay by previous time" (used to be "\t", literal 't'), another 2011 feature. * Add phase named constant 'G' for golden angle, scaled to cycle percentage, for use in e.g. "p(G*4)" for the 4th leaf-around-a-stem angle. Some smaller design changes without change in features. Make nicer README (now 'README.md'), also clear in plaintext. Also, rewrite various parts of 'doc/README.SAU', for clarity. When adjusting scripts to use '\' instead of 's' (after renaming every '\' to '/') make sure that the '\' is always before any old 't' that is for the same (sub-)step. Placement is now important. As for old '\' followed by '|', swap and write a '|' before the new '/', to get the old behavior.