This closes "Set field in (at least) widget screen does not take into account a locale for (at least) the Float type" https://issues.apache.org/jira/browse/OFBIZ-5453
And definitively fixes issues with i18n of geolocation 

It introduces a "locale" attribute to the "set" operation in widget (I only tested screen, form is quite similar, should be ok) and minilang.


git-svn-id: https://svn.apache.org/repos/asf/ofbiz/trunk@1554681 13f79535-47bb-0310-9956-ffa450edef68