removed qt_compat from coverage

because each travis job imports either PySide or PyQt, coveralls
thinks some jobs are missing coverage in qt_compat, which in overall is
not true

also, removed dummy __main__ at the end of basics

Author: nicoddemus

pytestqt/_tests/test_basics.py

@@ -90,7 +90,3 @@ def event_recorder(qtbot):
     widget = EventRecorder()
     qtbot.addWidget(widget)
     return widget
-
-
-if __name__ == '__main__':
-    pytest.main(args=['-s'])

pytestqt/qt_compat.py

@@ -10,7 +10,7 @@
 
 on_rtd = os.environ.get('READTHEDOCS', None) == 'True'
 
-if not on_rtd:
+if not on_rtd:  # pragma: no cover
     try:
         import PySide.QtCore as _QtCore
         QtCore = _QtCore