Minor changes to the travis file
Reuse TRAVIS_OS_NAME for ios, move the ios checks after all the others,
add a new line between sections, drop unneeded search path for osx.
#include <QtGui/QApplication>
#include "mainwindow.h"
int main(int argc, char *argv[])
{
QApplication a(argc, argv);
MainWindow w;
w.show();
return a.exec();
}