Relax the subject line requirements for commits
Relax the subject line requirements for commits

This changes the hard limit of 50 to a soft limit of 50, with the new
hard limit being 72 characters. This gives people a bit more space,
while still (hopefully) guiding them towards subject lines that are
roughly 50 characters long.

Fixes https://gitlab.com/gitlab-org/release/framework/issues/16

stoplightio/gitlabhq,dreampet/gitlab,dreampet/gitlab,stoplightio/gitlabhq,dreampet/gitlab,stoplightio/gitlabhq,iiet/iiet-git,dreampet/gitlab,mmkassem/gitlabhq,mmkassem/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,iiet/iiet-git,mmkassem/gitlabhq,stoplightio/gitlabhq,axilleas/gitlabhq,axilleas/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq