fix DataGridExample build.xml (it was throwing error due to missed properties needed)
fix warnings in LanguageTest, changing 'insteadof' for 'is'
more build.xml example fixed
more build.xml example fixed
more build.xml example fixed (but this one does not work on runtime)

RTE: Cannot create property labelFields on org.apache.flex.html.staticControls.beads.models.DataGridModel.
at org.apache.flex.html.customControls::DataGrid/set labelFields()[/Users/carlosrovira/dev/apacheflex/flex-asjs/examples/DataGridXcompile/src/org/apache/flex/html/customControls/DataGrid.as:52
more build.xml example fixed (this one has a compile time warning

Warning: Data binding will not be able to detect assignments to 'strings'.
    [mxmlc]                                     dataProvider="{MyModel(applicationModel).strings}" />
more build.xml example fixed