Added lambda icon, foot icon, search forward/back icons
Doc fixes
Stepper: icons on buttons, logo and about dialog
Macro stepper: icons on buttons, logo and about dialog
Please merge into release
discovered quite a number of strange old errors. Also fixed an
error on setting current-directory when the tab has no directory,
no infrastructure for testing this automatically.
Requires are now handled correctly, except that required bindings aren't treated
as top-level (that is, their reductions are skipped). Should be an easy fix...
in stepper/stepper-tool.rkt
- in simple-module-based-language-convert-value, add print and trad-write case
in stepper/private/macro-unwind.rkt
- in fall-through, add to procedure-extract-target case
in drracket/tool-lib.rkt
- in contract for drracket:language:simple-settings-printing-style, add
'trad-write
