Except and properly handle Errors in view decorator
After the next release we can remove all try/except combinations that
are not customized and leave the handling of those exceptions to the
view decorator.
Patch by: Sverre Rabbelier
Revert r2376 since it's not needed as discussed in Issue 188.
http://code.google.com/p/soc/issues/detail?id=188
Patch by: Pawel Solyga
Reviewed by: to-be-reviewed