android: code cosmetics

Fix whitespace, capitalization, naming, comments, add 'using'
in .cpp, remove 'using' in .h, remove unneeded Q_UNUSED, add
needed Q_UNUSED, etc.

Change-Id: Ibf9ba57850cbea1e79e152ec0165c8b01fa66567
Reviewed-by: hjk <qthjk@ovi.com>

src/plugins/android/androiddeploystepwidget.h

@@ -34,9 +34,7 @@
 #include <projectexplorer/buildstep.h>
 
 QT_BEGIN_NAMESPACE
-namespace Ui {
-    class AndroidDeployStepWidget;
-}
+namespace Ui { class AndroidDeployStepWidget; }
 QT_END_NAMESPACE
 
 namespace Android {