Merge pull request #1115 from Cracert/i18n

[TRANSUP] pl
update sip bindings II
sip documentation fix
Typo fix, thanx to Carlos

Signed-off-by: Werner Macho <werner.macho@gmail.com>
[composer] ComposerLegend update all now only applies to referenced map's layers (in case they are locked) (fix #7177)
[composer] fixed composer legends inappropriately connected to the first composer map item on creation from XML
Drop margins on expression builder
Dump CASE correctly in QgsExpression::dump()
Fix windows build
Basque translation update
Merge pull request #1117 from asiersarasua/master

Basque translation update
Update of IT GUI translation - thanks Stefano Campus
german translation update and translation string fix
sip fixes
[TRANSUP] pl: ScriptEditor, SettingsDialogPython, Widget..