title update

git-svn-id: http://svn.code.sf.net/p/iso2mesh/code/trunk/jsonlab@372 786e58fb-9377-0410-9ff7-e4ac0ac0635c

AUTHORS.txt

 The author of "jsonlab" toolbox is Qianqian Fang. Qianqian
-is currently an Instructor at Massachusetts General Hospital, 
+is currently an Assistant Professor at Massachusetts General Hospital, 
 Harvard Medical School.
 
 Address: Martinos Center for Biomedical Imaging,