update copyright years

update copyright years

do not use depth 1 for checkouts in CI

do not use depth 1 for checkouts in CI

Fix checks and build to work on Cygwin

Fix checks and build to work on Cygwin

attempt to fix coverage reports

attempt to fix coverage reports

Merge pull request boostorg#91 from jeremiahar/develop

Add support for disabled exceptions

Merge pull request boostorg#91 from jeremiahar/develop

Add support for disabled exceptions