BUG: Fix memory leak in MetaImageIO after exception
BUG: Fix memory leak in MetaImageIO after exception

See ITK-3186

Change-Id: Ia78caea1c140c93f209b8b8505d4b75a06ed39fb

biotrump/ITK,spinicist/ITK,hendradarwin/ITK,hjmjohnson/ITK,malaterre/ITK,LucasGandel/ITK,jmerkow/ITK,vfonov/ITK,richardbeare/ITK,spinicist/ITK,vfonov/ITK,LucHermitte/ITK,fedral/ITK,biotrump/ITK,PlutoniumHeart/ITK,spinicist/ITK,thewtex/ITK,PlutoniumHeart/ITK,LucasGandel/ITK,Kitware/ITK,ajjl/ITK,richardbeare/ITK,msmolens/ITK,hendradarwin/ITK,blowekamp/ITK,InsightSoftwareConsortium/ITK,fbudin69500/ITK,malaterre/ITK,atsnyder/ITK,biotrump/ITK,spinicist/ITK,heimdali/ITK,LucasGandel/ITK,ajjl/ITK,vfonov/ITK,biotrump/ITK,BRAINSia/ITK,msmolens/ITK,zachary-williamson/ITK,heimdali/ITK,biotrump/ITK,stnava/ITK,InsightSoftwareConsortium/ITK,LucHermitte/ITK,jcfr/ITK,vfonov/ITK,BRAINSia/ITK,malaterre/ITK,BlueBrain/ITK,jcfr/ITK,hendradarwin/ITK,zachary-williamson/ITK,fedral/ITK,heimdali/ITK,fbudin69500/ITK,atsnyder/ITK,stnava/ITK,stnava/ITK,stnava/ITK,blowekamp/ITK,blowekamp/ITK,spinicist/ITK,biotrump/ITK,BlueBrain/ITK,zachary-williamson/ITK,BlueBrain/ITK,blowekamp/ITK,BRAINSia/ITK,malaterre/ITK,BRAINSia/ITK,InsightSoftwareConsortium/ITK,spinicist/ITK,jmerkow/ITK,thewtex/ITK,hendradarwin/ITK,jcfr/ITK,jmerkow/ITK,zachary-williamson/ITK,zachary-williamson/ITK,atsnyder/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,spinicist/ITK,LucHermitte/ITK,jmerkow/ITK,ajjl/ITK,jmerkow/ITK,atsnyder/ITK,hjmjohnson/ITK,ajjl/ITK,fedral/ITK,ajjl/ITK,jmerkow/ITK,vfonov/ITK,vfonov/ITK,jcfr/ITK,Kitware/ITK,thewtex/ITK,stnava/ITK,BlueBrain/ITK,Kitware/ITK,hendradarwin/ITK,jcfr/ITK,richardbeare/ITK,atsnyder/ITK,thewtex/ITK,LucHermitte/ITK,BlueBrain/ITK,heimdali/ITK,LucHermitte/ITK,InsightSoftwareConsortium/ITK,heimdali/ITK,hendradarwin/ITK,atsnyder/ITK,atsnyder/ITK,spinicist/ITK,fbudin69500/ITK,hjmjohnson/ITK,biotrump/ITK,jcfr/ITK,richardbeare/ITK,fedral/ITK,thewtex/ITK,stnava/ITK,jmerkow/ITK,fbudin69500/ITK,blowekamp/ITK,stnava/ITK,jcfr/ITK,zachary-williamson/ITK,BRAINSia/ITK,fbudin69500/ITK,fedral/ITK,LucasGandel/ITK,PlutoniumHeart/ITK,ajjl/ITK,spinicist/ITK,LucasGandel/ITK,LucHermitte/ITK,fbudin69500/ITK,blowekamp/ITK,malaterre/ITK,PlutoniumHeart/ITK,atsnyder/ITK,heimdali/ITK,msmolens/ITK,fbudin69500/ITK,fedral/ITK,BlueBrain/ITK,Kitware/ITK,stnava/ITK,malaterre/ITK,vfonov/ITK,InsightSoftwareConsortium/ITK,LucasGandel/ITK,hjmjohnson/ITK,BlueBrain/ITK,PlutoniumHeart/ITK,richardbeare/ITK,ajjl/ITK,fedral/ITK,PlutoniumHeart/ITK,Kitware/ITK,richardbeare/ITK,LucasGandel/ITK,malaterre/ITK,BRAINSia/ITK,hendradarwin/ITK,Kitware/ITK,blowekamp/ITK,malaterre/ITK,hjmjohnson/ITK,InsightSoftwareConsortium/ITK,jcfr/ITK,msmolens/ITK,zachary-williamson/ITK,hjmjohnson/ITK,ajjl/ITK,vfonov/ITK,msmolens/ITK,fedral/ITK,PlutoniumHeart/ITK,jmerkow/ITK,msmolens/ITK,hendradarwin/ITK,heimdali/ITK,LucHermitte/ITK,zachary-williamson/ITK,BRAINSia/ITK,PlutoniumHeart/ITK,richardbeare/ITK,Kitware/ITK,msmolens/ITK,thewtex/ITK,thewtex/ITK,zachary-williamson/ITK,hjmjohnson/ITK,BlueBrain/ITK,LucHermitte/ITK,msmolens/ITK,atsnyder/ITK,malaterre/ITK,stnava/ITK,LucasGandel/ITK,biotrump/ITK,fbudin69500/ITK,heimdali/ITK,blowekamp/ITK