A batch of fixes:

 - #1993 WebSockets 'Compressed bit must be 0 if no negotiated deflate-frame extension' message
 - #1988 WPushButton user-provided style class is lost when a setLink() occurs after initial render
 - #1987 WPushButton user-provided style class is lost when a setLink() occurs after initial render
 - #1984 QueryModel addColumn
 - #1981 WPaintedWidget setInline(true) does not display as linline in IE9 and IE10
 - #1977 Inconsistent wt_config.xml.in comment/setting UA-Compatible
 - #1964 WBorderLayout Documentation - Enum Namespace is Wrong