Add warnings to annual_copyright_updater script
Add warnings to annual_copyright_updater script

annual_copyright_updater script misses some lines that are likely
to need updating.
This change adds a check against a looser regex to warn the user
that there are probably copyright lines that the script was unable
to replace.

Ensembl/ensembl,Ensembl/ensembl,Ensembl/ensembl,Ensembl/ensembl