[pdf-devel] Task FS#36

[jemarch]

I have inserted the following task in the NEXT status. Eder, Gerel,
would you like to perform this task?

http://www.gnupdf.org/flyspray/index.php?do=details&task_id=36&project=2&order=status&sort=desc

FS#36 - Change the API of the public functions to use 'const' in
        read-only parameters

Details

The public functions should use the 'const' qualifier in read-only
parameters. This will improve the readability of the API (by letting
the client to quicly identify input and output parameters) and the
quality of the code.

This task involves the following steps:

1) Update the Reference Manual (doc/gnupdf.texi).
2) Update the implementation.
3) Update the affected unit tests.