Fix a number of other qdoc issues.

* Several places needed the forward class declaration hack
* Missing/wrong minor version numbers on imports
* A few typos
* Any number of attempts to work around qdoc
* A few missing docs
* Tweaked soundeffect docs

Change-Id: I3c2ab998a11cbb0956712e0423e01fdb70f5bfff
Reviewed-by: Peter Yard <peter.yard@nokia.com>
Reviewed-by: Angus Cummings <angus.cummings@nokia.com>
Reviewed-by: Jonas Rabbe <jonas.rabbe@gmail.com>

src/imports/audioengine/qdeclarative_attenuationmodel_p.cpp

@@ -91,9 +91,9 @@ void QDeclarativeAttenuationModel::setName(const QString& name)
 //////////////////////////////////////////////////////////////////////////////////////////
 /*!
     \qmlclass AttenuationModelLinear QDeclarativeAttenuationModelLinear
-    \since 5.0
+    \since 1.0
     \brief Defines a linear attenuation curve for a \l Sound.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary
@@ -222,9 +222,10 @@ qreal QDeclarativeAttenuationModelLinear::calculateGain(const QVector3D &listene
 //////////////////////////////////////////////////////////////////////////////////////////
 /*!
     \qmlclass AttenuationModelInverse QDeclarativeAttenuationModelInverse
-    \since 5.0
+
+    \since 1.0
     \brief Defines a non-linear attenuation curve for a \l Sound.
-    \inmodule QtMultimedia
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_audiocategory_p.cpp

@@ -48,9 +48,9 @@ QT_USE_NAMESPACE
 
 /*!
     \qmlclass AudioCategory QDeclarativeAudioCategory
-    \since 5.0
+    \since 1.0
     \brief Control all active sound instances by group.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_audioengine_p.cpp

@@ -57,9 +57,9 @@ QT_USE_NAMESPACE
 
 /*!
     \qmlclass AudioEngine QDeclarativeAudioEngine
-    \since 5.0
+    \since 1.0
     \brief Organize all your 3d audio content in one place.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_audiolistener_p.cpp

@@ -49,9 +49,9 @@ QT_USE_NAMESPACE
 
 /*!
     \qmlclass AudioListener QDeclarativeAudioListener
-    \since 5.0
+    \since 1.0
     \brief Control global listener parameters.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_audiosample_p.cpp

@@ -51,9 +51,9 @@ QT_USE_NAMESPACE
 
 /*!
     \qmlclass AudioSample QDeclarativeAudioSample
-    \since 5.0
+    \since 1.0
     \brief Load audio samples, mostly .wav.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_playvariation_p.cpp

@@ -50,12 +50,12 @@ QT_USE_NAMESPACE
 
 /*!
     \qmlclass PlayVariation QDeclarativePlayVariation
-    \since 5.0
+    \since 1.0
     \brief Define a playback variation for \l {Sound} {sounds}.
     So each time the playback of the same sound can be a slightly different even with the same
     AudioSample.
 
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_sound_p.cpp

@@ -139,10 +139,10 @@ void QDeclarativeSoundCone::componentComplete()
 ////////////////////////////////////////////////////////////
 /*!
     \qmlclass Sound QDeclarativeSound
-    \since 5.0
+    \since 1.0
     \brief Define a variety of samples and parameters to be used for
     SoundInstance.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary

src/imports/audioengine/qdeclarative_soundinstance_p.cpp

@@ -52,9 +52,9 @@ QT_USE_NAMESPACE
 
 /*!
     \qmlclass SoundInstance QDeclarativeSoundInstance
-    \since 5.0
+    \since 1.0
     \brief Play 3d audio content.
-    \inqmlmodule QtAudioEngine 1
+    \inqmlmodule QtAudioEngine 1.0
     \ingroup multimedia_audioengine
     \inherits Item
     \preliminary