Rearrange the automatic tests.

Split them into unit and integration tests.  Integration tests really
need to be run on the real platform (not in a VM etc) since they are
somewhat unstable or nonfunctional otherwise.

A few tests were previously broken by QUrl changes and they were repaired.
Removed one test since it was not providing a lot of value.

There are still a number of tests that rely on Q_AUTOTEST_EXPORT symbols.

Change-Id: Ic402abf0af946baa5945075d975b3f584f9ef280
Reviewed-by: Kalle Lehtonen <kalle.ju.lehtonen@nokia.com>

tests/auto/unit/qmediaplaylist/qmediaplaylist.pro

@@ -0,0 +1,18 @@
+CONFIG += testcase
+TARGET = tst_qmediaplaylist
+
+include (../qmultimedia_common/mockplaylist.pri)
+
+QT += multimedia-private testlib
+CONFIG += no_private_qt_headers_warning
+
+DEFINES += TESTDATA_DIR=\\\"$$PWD/\\\"
+
+HEADERS += \
+    $$QT.multimedia.sources/../plugins/m3u/qm3uhandler.h
+
+SOURCES += \
+    tst_qmediaplaylist.cpp \
+    $$QT.multimedia.sources/../plugins/m3u/qm3uhandler.cpp
+
+INCLUDEPATH += $$QT.multimedia.sources/../plugins/m3u