Rework the function that computes no_normal_flux and make it work for all cases in 2d.
Rework the function that computes no_normal_flux and make it work for all cases in 2d.

git-svn-id: 31d9d2f6432a47c86a3640814024c107794ea77c@15643 0785d39b-7218-0410-832d-ea1e28bc413d

nicolacavallini/dealii,sairajat/dealii,jperryhouts/dealii,ESeNonFossiIo/dealii,JaeryunYim/dealii,YongYang86/dealii,kalj/dealii,maieneuro/dealii,jperryhouts/dealii,andreamola/dealii,gpitton/dealii,ESeNonFossiIo/dealii,lue/dealii,rrgrove6/dealii,EGP-CIG-REU/dealii,nicolacavallini/dealii,pesser/dealii,angelrca/dealii,jperryhouts/dealii,johntfoster/dealii,mac-a/dealii,flow123d/dealii,angelrca/dealii,naliboff/dealii,mac-a/dealii,lue/dealii,JaeryunYim/dealii,lpolster/dealii,gpitton/dealii,adamkosik/dealii,kalj/dealii,maieneuro/dealii,gpitton/dealii,andreamola/dealii,ESeNonFossiIo/dealii,andreamola/dealii,flow123d/dealii,shakirbsm/dealii,angelrca/dealii,mac-a/dealii,ESeNonFossiIo/dealii,spco/dealii,lue/dealii,angelrca/dealii,pesser/dealii,JaeryunYim/dealii,mtezzele/dealii,natashasharma/dealii,johntfoster/dealii,rrgrove6/dealii,maieneuro/dealii,Arezou-gh/dealii,nicolacavallini/dealii,danshapero/dealii,pesser/dealii,gpitton/dealii,nicolacavallini/dealii,msteigemann/dealii,maieneuro/dealii,sriharisundar/dealii,adamkosik/dealii,spco/dealii,JaeryunYim/dealii,jperryhouts/dealii,natashasharma/dealii,gpitton/dealii,pesser/dealii,ESeNonFossiIo/dealii,lue/dealii,EGP-CIG-REU/dealii,natashasharma/dealii,mtezzele/dealii,msteigemann/dealii,danshapero/dealii,johntfoster/dealii,msteigemann/dealii,EGP-CIG-REU/dealii,shakirbsm/dealii,sairajat/dealii,lpolster/dealii,shakirbsm/dealii,kalj/dealii,spco/dealii,adamkosik/dealii,jperryhouts/dealii,rrgrove6/dealii,lpolster/dealii,EGP-CIG-REU/dealii,flow123d/dealii,shakirbsm/dealii,Arezou-gh/dealii,kalj/dealii,rrgrove6/dealii,EGP-CIG-REU/dealii,johntfoster/dealii,Arezou-gh/dealii,YongYang86/dealii,danshapero/dealii,EGP-CIG-REU/dealii,YongYang86/dealii,shakirbsm/dealii,natashasharma/dealii,sriharisundar/dealii,gpitton/dealii,Arezou-gh/dealii,msteigemann/dealii,andreamola/dealii,flow123d/dealii,flow123d/dealii,sairajat/dealii,nicolacavallini/dealii,rrgrove6/dealii,andreamola/dealii,YongYang86/dealii,ibkim11/dealii,johntfoster/dealii,rrgrove6/dealii,naliboff/dealii,natashasharma/dealii,ibkim11/dealii,lpolster/dealii,maieneuro/dealii,johntfoster/dealii,EGP-CIG-REU/dealii,mac-a/dealii,sairajat/dealii,naliboff/dealii,natashasharma/dealii,pesser/dealii,ESeNonFossiIo/dealii,natashasharma/dealii,lue/dealii,shakirbsm/dealii,spco/dealii,adamkosik/dealii,rrgrove6/dealii,JaeryunYim/dealii,YongYang86/dealii,sriharisundar/dealii,adamkosik/dealii,YongYang86/dealii,sairajat/dealii,spco/dealii,kalj/dealii,jperryhouts/dealii,pesser/dealii,Arezou-gh/dealii,sairajat/dealii,gpitton/dealii,adamkosik/dealii,YongYang86/dealii,naliboff/dealii,andreamola/dealii,naliboff/dealii,danshapero/dealii,Arezou-gh/dealii,sriharisundar/dealii,angelrca/dealii,JaeryunYim/dealii,mtezzele/dealii,spco/dealii,ibkim11/dealii,maieneuro/dealii,msteigemann/dealii,mtezzele/dealii,naliboff/dealii,jperryhouts/dealii,flow123d/dealii,shakirbsm/dealii,mac-a/dealii,lpolster/dealii,danshapero/dealii,mac-a/dealii,nicolacavallini/dealii,adamkosik/dealii,johntfoster/dealii,lue/dealii,ibkim11/dealii,pesser/dealii,Arezou-gh/dealii,naliboff/dealii,lpolster/dealii,msteigemann/dealii,ibkim11/dealii,sairajat/dealii,mac-a/dealii,spco/dealii,sriharisundar/dealii,maieneuro/dealii,JaeryunYim/dealii,angelrca/dealii,ibkim11/dealii,angelrca/dealii,andreamola/dealii,flow123d/dealii,ibkim11/dealii,msteigemann/dealii,sriharisundar/dealii,danshapero/dealii,lpolster/dealii,kalj/dealii,sriharisundar/dealii,mtezzele/dealii,lue/dealii,mtezzele/dealii,kalj/dealii,mtezzele/dealii,nicolacavallini/dealii,danshapero/dealii,ESeNonFossiIo/dealii