Merge branch 'localized_usm_only'

Localized only agents is now the default behaviour.
README update
Include design consideration in README
fix readme error
TODO update, new table util function
table ok, but new bug wrong lexicographical order
fix IgnoreLexicographicOrder by using getNext pdus. It is a agent implementation bug
all functions are ok
API doc ok
doc++
Doc ++ code cleanup
functest fix
throws all esceptions
include Java word in error return
fix space inconsistance in makefile
code cleanup
doc ++
README modif, everything is in the doc
doc++
remove start phases