Trap error if unable to create temporary directory, then bail out

git-svn-id: http://svn.code.sf.net/p/autowikibrowser/code/AWB@9992 5227b50d-9349-4574-b055-4b0a7525e11c
fixed typo

git-svn-id: http://svn.code.sf.net/p/autowikibrowser/code/AWB@9993 5227b50d-9349-4574-b055-4b0a7525e11c
Fix up a few ReSharper issues

git-svn-id: http://svn.code.sf.net/p/autowikibrowser/code/AWB@9994 5227b50d-9349-4574-b055-4b0a7525e11c