Add setup and teardown funcs to test_dti to handle test cleanup.
Add setup and teardown funcs to test_dti to handle test cleanup.

git-svn-id: 24f545668198cdd163a527378499f2123e59bf9f@1052 ead46cd0-7350-4e37-8683-fc4c6f79bf00

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