Changed tool initialization error handling (from stack traceback to simple error message.)

tools/extract/extract_GFF_Features.py

@@ -19,7 +19,7 @@ def main():
         inp_file, out_file, column, features = args
         column = int(column)
     except:
-        doc_optparse.exception()
+        doc_optparse.exit()
     
     if features == None:
         print "Column %d has no features to display. Please select another column." %(column+1)

tools/new_operations/get_flanks.py

@@ -28,7 +28,7 @@ def main():
         if strand_col_1 <= 0:
             strand = "+"        #if strand is not defined, default it to +
     except:
-        doc_optparse.exception()
+        doc_optparse.exit()
         
     try:
         fi = open(inp_file,'r')