tesseract: update head URL.

Closes #31595.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
node: add optional icu4c dependency.

Closes #31538.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
findbugs 3.0.0

Closes #31578.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
mozilla-addon-sdk 1.17

update Mozilla addon-sdk to version 1.17

Closes #31593.

Signed-off-by: Mike McQuaid <mike@mikemcquaid.com>
Revert "node: add optional icu4c dependency."

This reverts commit b859a5c6a2f8fdf1c660844a8d47a321b8ddea84.
geoip: fix country link.

The default GeoIP Country database is GeoIP.dat not GeoIPCountry.dat
geoip: update 1.6.2 bottle.
mercury: Don't enable the .NET backend when building with mono.

The .NET IL backend is unsupported and does not build.
mercury: update 14.01 bottle.