Fixes #10308.

When a file is requested without a tag parameter, we need to look to
the referer to find out what the tag is, so we can associate it with
the correct readme file.

fix(developer): quell internal error when  a section fails 🙀

auto: increment master version to 17.0.238

chore(developer): honor prompt to upgrade in kmc

feat(developer): Consolidate public APIs for kmc modules

auto: increment master version to 17.0.237

- when a required section is missing, only throw an internal error IF we haven't already flagged a problem.  for example, if 'vars' fails to compile because of a problem, and we already have an error on file, then don't throw an internal error that 'bksp' depends on uninitialized 'vars'.

- mimic this flow in the test helpers.

- add a test case for this in the test helpers, in test-tran

- add a strictError flag to say that no additional errs are allowed.

Fixes: #10291

fix(common): give warning if emcc.py is present but not executable

fix(oem/fv): Add fv_kwadacha_tsekene

auto: increment master version to 17.0.236

- change the common emscripten locator to warn if $EMCC  or $EMSCRIPTEN_BASE/emcc.py is present but not executable
- emscripten v3.1.50 via homebrew seems to be not executable

feat(developer): ldml: more improvement for key-not-found 🙀 

auto: increment master version to 17.0.235

fix(web): default multitap logic for shift-layer shift multitaps

fix(mac): Improve detection of non-compliant apps

auto: increment master version to 17.0.234

fix(oem/fv): Add fv_hulquminum_combine

Co-authored-by: Joshua Horton <joshua_horton@sil.org>

fix(core): clear core context on invalidate cache

fix(web): unbreak some ts paths