updated attribute cleaner to use allowed keyword and reject attributes
updated attribute cleaner to use allowed keyword and reject attributes

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