added hashing support; cleaned up multipath
added hashing support; cleaned up multipath

git-svn-id: 24f545668198cdd163a527378499f2123e59bf9f@1136 ead46cd0-7350-4e37-8683-fc4c6f79bf00

fprados/nipype,iglpdc/nipype,dmordom/nipype,gerddie/nipype,dgellis90/nipype,Leoniela/nipype,arokem/nipype,glatard/nipype,wanderine/nipype,grlee77/nipype,pearsonlab/nipype,fprados/nipype,pearsonlab/nipype,dmordom/nipype,fprados/nipype,mick-d/nipype,FCP-INDI/nipype,FCP-INDI/nipype,carolFrohlich/nipype,blakedewey/nipype,wanderine/nipype,pearsonlab/nipype,rameshvs/nipype,dgellis90/nipype,dgellis90/nipype,gerddie/nipype,gerddie/nipype,rameshvs/nipype,FredLoney/nipype,blakedewey/nipype,dgellis90/nipype,sgiavasis/nipype,grlee77/nipype,FCP-INDI/nipype,christianbrodbeck/nipype,sgiavasis/nipype,mick-d/nipype,carlohamalainen/nipype,glatard/nipype,rameshvs/nipype,wanderine/nipype,carolFrohlich/nipype,iglpdc/nipype,dmordom/nipype,christianbrodbeck/nipype,satra/NiPypeold,pearsonlab/nipype,mick-d/nipype_source,gerddie/nipype,glatard/nipype,grlee77/nipype,sgiavasis/nipype,arokem/nipype,mick-d/nipype_source,carlohamalainen/nipype,satra/NiPypeold,FredLoney/nipype,arokem/nipype,JohnGriffiths/nipype,JohnGriffiths/nipype,FredLoney/nipype,mick-d/nipype,mick-d/nipype_source,carolFrohlich/nipype,sgiavasis/nipype,arokem/nipype,Leoniela/nipype,mick-d/nipype,rameshvs/nipype,JohnGriffiths/nipype,wanderine/nipype,blakedewey/nipype,blakedewey/nipype,FCP-INDI/nipype,iglpdc/nipype,JohnGriffiths/nipype,iglpdc/nipype,Leoniela/nipype,carolFrohlich/nipype,grlee77/nipype,carlohamalainen/nipype,glatard/nipype