[Mpi-forum] "const" ticket needs to be applied

Looks like several chapters are missing the "const" ticket (#140): https://svn.mpi-forum.org/trac/mpi-forum-web/ticket/140 Dynamic Processes Environment Management (chap-inquiry) Point-to-point Communication Datatypes Terms and Conventions I just added it to the I/O chapter by merging from https://svn.crest.iu.edu/svn/mpi-forum-docs/trunk/working-groups/mpi-3/bw-co... . (but having svn checkin permission issues, hence not checked in yet) Rajeev