Merge 'namespace-clean' into 'trunk'

Merge 'namespace-clean' into 'trunk'

r24518@hlagh (orig r9512):  rkitover | 2010-06-01 09:16:09 -0400
branch to use namespace::clean
r24523@hlagh (orig r9517):  rkitover | 2010-06-01 10:47:03 -0400
use namespace::cleaned out imports for some common utilities
r24526@hlagh (orig r9520):  rkitover | 2010-06-01 11:23:36 -0400
remove useless use of n::c