Bump oj gem to version 2.17.5
Bump oj gem to version 2.17.5

mmkassem/gitlabhq,htve/GitlabForChinese,dplarson/gitlabhq,axilleas/gitlabhq,axilleas/gitlabhq,axilleas/gitlabhq,stoplightio/gitlabhq,htve/GitlabForChinese,iiet/iiet-git,mmkassem/gitlabhq,dplarson/gitlabhq,jirutka/gitlabhq,jirutka/gitlabhq,darkrasid/gitlabhq,t-zuehlsdorff/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,jirutka/gitlabhq,iiet/iiet-git,mmkassem/gitlabhq,iiet/iiet-git,dreampet/gitlab,t-zuehlsdorff/gitlabhq,jirutka/gitlabhq,dplarson/gitlabhq,darkrasid/gitlabhq,darkrasid/gitlabhq,axilleas/gitlabhq,dreampet/gitlab,dreampet/gitlab,stoplightio/gitlabhq,t-zuehlsdorff/gitlabhq,stoplightio/gitlabhq,iiet/iiet-git,dreampet/gitlab,darkrasid/gitlabhq,mmkassem/gitlabhq,htve/GitlabForChinese,dplarson/gitlabhq,htve/GitlabForChinese