map layer combo: emit signal before return
field expression widget: better documentation
custom widgets for Qt Designer, QgsScaleVisibilityGroupBox plugin
added QgsFieldComboBox, QgsFieldExpressionWidget and QgsMapLayerComboBox to custom widgets
QgsMapLayerComboBox: allow setting filters within QtDesigner
better initial size for widgets
redirect custom widget includes to qgis.gui
fix ui header name