API unit tests from Maemo API test team.

A large number of tweaks and changes to original tests, and refactor
a lot of the mock backends to reduce duplication.

Changed viewfinder test case to use mock service and provider so
that it matches the image capture test case.

Reviewed-by: Jonas Rabbe
(cherry picked from commit e40bef5508a4165cec4a46b97115aed461027fa5)

Also licence header fix:
(cherry picked from commit e9ee9e8c48b45b97d62ee4a82e400fa9d8ea8107)

Change-Id: Ic59891d75563bb2e008a336eea859e8c44d8d831
Reviewed-on: http://codereview.qt.nokia.com/2078
Reviewed-by: Jonas Rabbe <jonas.rabbe@nokia.com>

tests/auto/qmediaplaylist/qmediaplaylist.pro

@@ -3,6 +3,8 @@ load(qttest_p4)
 # temporarily blacklist test because is fails miserably
 CONFIG += insignificant_test
 
+include (../qmultimedia_common/mockplaylist.pri)
+
 QT += multimediakit-private
 
 # TARGET = tst_qmediaplaylist
@@ -13,7 +15,6 @@ DEFINES += TESTDATA_DIR=\\\"$$PWD/\\\"
 HEADERS += \
     $$QT.multimediakit.sources/../plugins/m3u/qm3uhandler.h
 
-message($$HEADERS)
 SOURCES += \
     tst_qmediaplaylist.cpp \
     $$QT.multimediakit.sources/../plugins/m3u/qm3uhandler.cpp