Move most of the BuildConfiguration specific functions

Note: I didn't fix all the connects and there are a few missing things.
This compiles, more work is coming.

src/plugins/qt4projectmanager/qt4buildconfiguration.h

@@ -31,10 +31,14 @@
 #define QT4BUILDCONFIGURATION_H
 
 #include <projectexplorer/buildconfiguration.h>
+#include <projectexplorer/toolchain.h>
 
 namespace Qt4ProjectManager {
 
 class Qt4Project;
+class QtVersion;
+class QMakeStep;
+class MakeStep;
 
 namespace Internal {
 
@@ -46,6 +50,53 @@ public:
     // copy ctor
     Qt4BuildConfiguration(Qt4BuildConfiguration *source);
     ~Qt4BuildConfiguration();
+
+    ProjectExplorer::Environment environment() const;
+    ProjectExplorer::Environment baseEnvironment() const;
+    void setUserEnvironmentChanges(const QList<ProjectExplorer::EnvironmentItem> &diff);
+    QList<ProjectExplorer::EnvironmentItem> userEnvironmentChanges() const;
+    bool useSystemEnvironment() const;
+    void setUseSystemEnvironment(bool b);
+
+    virtual QString buildDirectory() const;
+
+    // returns the qtdir (depends on the current QtVersion)
+    QString qtDir() const;
+    //returns the qtVersion, if the project is set to use the default qt version, then
+    // that is returned
+    // to check wheter the project uses the default qt version use qtVersionId
+    QtVersion *qtVersion() const;
+
+    // returns the id of the qt version, if the project is using the default qt version
+    // this function returns 0
+    int qtVersionId() const;
+    //returns the name of the qt version, might be QString::Null, which means default qt version
+    // qtVersion is in general the better method to use
+    QString qtVersionName() const;
+
+    void setQtVersion(int id);
+
+    ProjectExplorer::ToolChain *toolChain() const;
+    void setToolChainType(ProjectExplorer::ToolChain::ToolChainType type);
+    ProjectExplorer::ToolChain::ToolChainType toolChainType() const;
+
+
+    // Those functions are used in a few places.
+    // The drawback is that we shouldn't actually depend on them beeing always there
+    // That is generally the stuff that is asked should normally be transfered to
+    // Qt4Project *
+    // So that we can later enable people to build qt4projects the way they would like
+    QMakeStep *qmakeStep() const;
+    MakeStep *makeStep() const;
+
+    QString makeCommand() const;
+    QString defaultMakeTarget() const;
+
+    // TODO rename
+    bool compareBuildConfigurationToImportFrom(const QString &workingDirectory);
+
+signals:
+    void qtVersionChanged();
 };
 
 } // namespace Qt4ProjectManager