VERSION: remove libmpi_usempi_ignore_tkr_so_version; it isn't used anywhere
Opal: Add a new MCA variable type "version_string". Also add a 
new flag to ompi_info that allows a user to print all MCA variables of a specific type.  

 --type version_string

This command will print all MCA variables of type version_string.

This feature was developed by Elena Shipunova and was reviewed by Josh Ladd.