[Axis2]Renewing Guththila

[Dinesh Premalal]

Hi devs,
          Hope to do following modifications to guththila code in order to minimize memory leaks and enhance the performance of guththila xml parser.

guththila_reader
------------------------
                 1.Replace guththila_environment, guththila_allocator, guththila_error with axis2_environment, axis2_allocator and axis2_error.
                        axis2_xx implementations has less errors , well tested implementations and no point of maintaining same implementations in two places

                 2. Remove it's local stack implementation and use axis2_utils stack implementation
                 3. Implement space , comments and pi handling functions.
                 4.  Adding guththila_reader_create_for_io (), guththila_reader_create_for_memory () functions.

guththila_writer
---------------------------
                1. Integrate with aixs2_utils stack implementation.

If you have any ideas please let us know.

thanks,
Dinesh

--
W.Dinesh Premalal
http://xydinesh.blogspot.com/