Increase file descriptor limit in the init script.
Update discover.py script.
Update documentation.
Remove auto-generated files.
Build fix.
Another build fix.
Update documentation.
Update example config.
el5 libtoolize does not support --quiet flag.
Fix group detection on el5.
Update boost requirements for el5.

refs #4772
refs #4781
Fix package name.
There is no mysql-libs package on el5.
Depend on boost141 libs in el5.
Properly detect boost141 libs/headers on el5.

refs #4772
Update documentation.
Fix group check.

Fixes #4816
Implement global attributes.
Use script variables for global options.
Convert global attributes to script variables.