#9085: Set refresh to F5 key in qbrowser

Set refresh to F5 key in qbrowser equally to qapp

http://hub.qgis.org/projects/quantum-gis/repository/revisions/32b05836d50b36f443517ef6a76ac26d49b19b89
fix warning when parsing stylesheet in qgsmessagebar:
avoid log message: "Could not parse stylesheet of widget .."
[spatialquery] shows the warning in message bar when no layer is loaded in canvas
[ftools] avoid trivial error for Random selection tool
[pyqgis-console] prepared API file update
[pyqgis-console] avoid processEvents for stderr output
[pyqgis-console] fixes #9097 (thanks to Minoru Akagi)
Merge pull request #1012 from ahuarte47/Issue_9085-qbrowser

Feature #9085: Set refresh to F5 key in qbrowser
Fix printing for curved labels
Some updates for ntv2 entries in tbl_datum_transform
[relations] Support for .ui file dialogs
AttributeForm: Create a dummy button box for intercepting ok clicks
when the ok button is hidden and the accept was actually triggered
by something else. This allows to continue using custom validation
logic without changes.
Fixes #8885
[relations] When loading invalid relations from a project, tag them as such
[composer] Clean up item rotation api, seperate item rotation (for shapes, labels) from map rotation and picture rotation
Maintain compatibility with 2.0 api, deprecate ambiguous rotation/setRotation methods
[composer] Move item rotation control to item widget panel
[FEATURE] [composer] Replace custom item rotation with QGraphicsItem rotation, support rotation for all types of composer items (fix #7933, fix #4884)
[composer] Partially fix rotated item scaling
[composer] Fix item rotation so that rotation occurs around item center
[composer] Fix resizing of item groups with rotated items (incomplete)