Split unit test ready for coming changes

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9869 5227b50d-9349-4574-b055-4b0a7525e11c
ISBN format fixes for ISBN within citation template:
* remove leading "isbn" text (not where multiple ISBNs within the parameter)
* trim unnecessary .,:; characters
* format endash back to plain hyphen

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9870 5227b50d-9349-4574-b055-4b0a7525e11c
Another invalid dash character for replacement in ISBNs

git-svn-id: svn://svn.code.sf.net/p/autowikibrowser/code/AWB@9871 5227b50d-9349-4574-b055-4b0a7525e11c