Move Repair method out of Pipe implementation.
Move Repair method out of Pipe implementation.

henrylee2cn/mgo,hexadecy/mgo,go-mgo/travis-test,DroiTaipei/mgo,go-mgo/travis-test,DroiTaipei/mgo,Danzeer/mgo,deafgoat/mgo,velocity-toolkit/mgo,Yottaa/mgo.v2,lucasjo/mgo,mcuadros/mgo,deafgoat/mgo,SocialExplorerFork/mgo,jjz/mgo,velocity-toolkit/mgo,dmage/mgo,jackspirou/mgo,mjs/mgo,mcuadros/mgo,Yottaa/mgo.v2,velocity-toolkit/mgo,henrylee2cn/mgo,mjs/mgo,deafgoat/mgo,gabrielrussell/mgo,SocialExplorerFork/mgo,DroiTaipei/mgo,raymondjacobson/mgo,raymondjacobson/mgo,Yottaa/mgo.v2,lucasjo/mgo,Danzeer/mgo,mcuadros/mgo,mjs/mgo,go-mgo/travis-test,tmc/mgo,tchajed/mgo,tmc/mgo,gabrielrussell/mgo,jackspirou/mgo,gabrielrussell/mgo,tchajed/mgo,henrylee2cn/mgo,dmage/mgo,DroiTaipei/mgo,jjz/mgo,raymondjacobson/mgo,deafgoat/mgo,raymondjacobson/mgo,Danzeer/mgo,Yottaa/mgo.v2,tmc/mgo,velocity-toolkit/mgo,tchajed/mgo,lucasjo/mgo,dmage/mgo,SocialExplorerFork/mgo,mcuadros/mgo,tchajed/mgo,SocialExplorerFork/mgo,tchajed/mgo,hexadecy/mgo,jjz/mgo,jackspirou/mgo,jjz/mgo,hexadecy/mgo,jackspirou/mgo,henrylee2cn/mgo,lucasjo/mgo,dmage/mgo,hexadecy/mgo,go-mgo/travis-test,tmc/mgo,Danzeer/mgo,gabrielrussell/mgo,mjs/mgo