FormTableSection Renderers

[davidsowerby]

The Vaadin supplied renderers for Grid.Column are inconsistent in the way they handle locale, and make it difficult to change locale dynamically.

Some use the Grid locale (depending on which constructor is used). This would mean just refreshing the Grid after a locale change :

• LocalDateTimeRenderer
• LocalDateRenderer

These are fine, but others use different methods, and cannot be changed post-construction:

• NumberRenderer requires a locale set at time of construction, or uses the default for NumberFormat
• DateRenderer (which may never be used now of course) - uses Locale.getDefault() unless explicitly set.

Currently the FormTableSection just uses TextRenderer, but once fixed should use the appropriate column renderers for the data type. All renderers should just use the Grid locale