[ADD]demo data of Americanization  units of measure and test case for the same.
[MERGE]merged with main addons
[IMP]remove (%) icon in payment term
[MERGE]with lp:openobject-addons
[MERGE]with main lp:openobject-addons
[MERGE]sync with trunk.
[MERGE]sync with trunk.
[MERGE] [IMP] account: payment term configuration: do not fool people by
telling them to enter a percentage when openerp actually waits for a decimal.
Therefore removed the percentage symbol.
[MERGE] [IMP] product: added data for american units of measure + 1 yml test
[IMP] reduced image size