Product-only:

Product-only:
- moved > of <ui:composition> to new line to have newly added namspaces being
  added without causing 2 lines being changed
- wrapped long JSF/PF tags having each attribute in a single line
- added size, maxValue and minValue to productUnitAmount
- onPostback has caused some side effect that values got overwritten in e.g.
  edit views
- no longer using tableStyleClass
- changed i18n strings, no need for having PRODUCT_ prefix on e.g. net/gross
  price strings
- no longer using styleClass="submit|reset"
- added process="@form" as a workaround for an exception, according to BalusC
  this is not fixing the actual application's misconfiguration (where which?)

Signed-off-by: Roland Häder <roland@mxchange.org>