Fixed bug in BaseIO when writing with an IO that does not support writing Blocks
Fixed bug in BaseIO when writing with an IO that does not support writing Blocks

git-svn-id: 0eea5547755d67006ec5687992a7464f0ad96b59@393 acbc63fc-6c75-0410-9d68-8fa99cba188a

apdavison/python-neo,theunissenlab/python-neo,samuelgarcia/python-neo,mschmidt87/python-neo,JuliaSprenger/python-neo,guangxingli/python-neo,SummitKwan/python-neo,NeuralEnsemble/python-neo,mgr0dzicki/python-neo,tkf/neo,INM-6/python-neo,Blackfynn/python-neo,tclose/python-neo,npyoung/python-neo,jakobj/python-neo,rgerkin/python-neo,amchagas/python-neo,CINPLA/python-neo