Synced mail_room.yml with the one in omnibus
Synced mail_room.yml with the one in omnibus

Added a comment to remember developers to open merge request to omnibus
in future changes of the file.

LUMC/gitlabhq,allysonbarros/gitlabhq,shinexiao/gitlabhq,daiyu/gitlab-zh,mr-dxdy/gitlabhq,jirutka/gitlabhq,allysonbarros/gitlabhq,allysonbarros/gitlabhq,iiet/iiet-git,SVArago/gitlabhq,stoplightio/gitlabhq,mr-dxdy/gitlabhq,daiyu/gitlab-zh,openwide-java/gitlabhq,icedwater/gitlabhq,stoplightio/gitlabhq,t-zuehlsdorff/gitlabhq,jirutka/gitlabhq,dplarson/gitlabhq,mmkassem/gitlabhq,iiet/iiet-git,shinexiao/gitlabhq,t-zuehlsdorff/gitlabhq,axilleas/gitlabhq,iiet/iiet-git,stoplightio/gitlabhq,darkrasid/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,darkrasid/gitlabhq,LUMC/gitlabhq,daiyu/gitlab-zh,jirutka/gitlabhq,axilleas/gitlabhq,SVArago/gitlabhq,mmkassem/gitlabhq,mmkassem/gitlabhq,openwide-java/gitlabhq,htve/GitlabForChinese,icedwater/gitlabhq,htve/GitlabForChinese,htve/GitlabForChinese,screenpages/gitlabhq,shinexiao/gitlabhq,daiyu/gitlab-zh,allysonbarros/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,SVArago/gitlabhq,icedwater/gitlabhq,screenpages/gitlabhq,LUMC/gitlabhq,openwide-java/gitlabhq,darkrasid/gitlabhq,dplarson/gitlabhq,dreampet/gitlab,shinexiao/gitlabhq,openwide-java/gitlabhq,dreampet/gitlab,dreampet/gitlab,LUMC/gitlabhq,dplarson/gitlabhq,screenpages/gitlabhq,screenpages/gitlabhq,axilleas/gitlabhq,jirutka/gitlabhq,dplarson/gitlabhq,stoplightio/gitlabhq,axilleas/gitlabhq,dreampet/gitlab,darkrasid/gitlabhq,mr-dxdy/gitlabhq,iiet/iiet-git,htve/GitlabForChinese,mr-dxdy/gitlabhq,mmkassem/gitlabhq