Fix bug on categories reload, and add compilation's informations in about dialog.

git-svn-id: svn+ssh://svn.tuxfamily.org/svnroot/qet/qet/trunk@2011 bfdf4180-ca20-0410-9c96-a3a8aa849046

sources/aboutqet.cpp

@@ -69,6 +69,11 @@ QWidget *AboutQET::title() const {
 	icon -> setPixmap(QET::Icons::QETOxygenLogo.pixmap(48, 48));
 	// label "QElectroTech"
 	QLabel *title = new QLabel("<span style=\"font-weight:0;font-size:16pt;\">QElectroTech v" + QET::displayedVersion + "</span>");
+	QString sCompilation =	"<br>"+ tr("Compilation: ") +  __DATE__+ " " + __TIME__;
+#ifdef __GNUC__
+	sCompilation += " - GCC " + QString(__VERSION__);
+#endif
+	title -> setText( title->text() + sCompilation);
 	title -> setTextFormat(Qt::RichText);
 	
 	QHBoxLayout *hlayout = new QHBoxLayout();

sources/fileelementscollection.cpp

@@ -89,7 +89,7 @@ void FileElementsCollection::setFilePath(const QString &path) {
 	Supprime le contenu en memoire de cette collection
 */
 void FileElementsCollection::deleteContent() {
-	delete root;
+	if(!root)	delete root;
 	root = 0;
 }