Several fixes and improvements:

    Wt::Render: fixed matching of Selector containing 3 or more identical simple selectors

    Fix #2029: responsive navigation bar without animations, also provide a good
	solution for animations+layouts interference

    Fix #2084: missing dllimport/export for WAbstractProxyModel::BaseItem

    Build: Blacklist boost 1.54 on Windows (httpd data corruption), added C++11 build option

    Signals: Support signals2 as signals is being dropped in newer boost versions

    Wt::Dbo: add updateAuthToken() to update an existing auth token (keeping its expiration time)

    Implement #1914: Wt::Json::serialize() functions

    Wt::Render: account for margin, padding, borders for minimum width calculations

    Fix #2071: WStringStream: make compiler bwarf on unsupported types

    Fix #2078, #2079 internal path redirect in progressive bootstrap application

    Fix #1952: WCompositeWidget::setObjectName()

    Fix #1948 (patch from Pierluigi Vicinanza)

    Wt::Render: improve table rendering: support border-collapse collapse and honor set widths

    Fix #2002: WTabWidget::setTabEnabled() partially working

    Fix #2080: Timing issue with document.body being available in progressive bootstrap

    WString: resolve using WServer::localizedStrings if no WApplication context is available

    Implemented #1602: Wt::Mail::Message::setDate()

    Implemented #1390: Adding support for local date/time (WLocalDateTime)

    implemented #1179: interpret ItemIsSelectable for enabling/disabling options in
	combo-box/selection box

    Fix #2074: inOneSecond issue (Bruce Toll)

    Layouts: fix problem requiring to reapply whenever a parent widget changes size

    Fix #2039: segfault (vector subscript out of range) in WSortFilterProxyModel

    Fix #2018: Wt::Http::Client actually does not append port numbers to the "Host" header

    Fix #2016: Wt::Http::Client::parseUrl cannot parse URLs containing username and password

    Fix #2067 WDateEdit: on click event not received when setEmptyText is used

    Config: remove the xhtml mime-type option, viva HTML5