Fixing a problem with compiler symbols for testing.

All tiff reading warnings aren't logged.

git-svn-id: http://gil-contributions.googlecode.com/svn/trunk/gil_2@789 74d2078f-e420-0410-9604-315c732a9900
renamed "io_new" to "io"

git-svn-id: http://gil-contributions.googlecode.com/svn/trunk/gil_2@790 74d2078f-e420-0410-9604-315c732a9900
io extension has been moved to boost.

git-svn-id: http://gil-contributions.googlecode.com/svn/trunk/gil_2@795 74d2078f-e420-0410-9604-315c732a9900
io extension has been moved to boost.

git-svn-id: http://gil-contributions.googlecode.com/svn/trunk/gil_2@796 74d2078f-e420-0410-9604-315c732a9900