added "Recently opened files"-menu, fixed several bugs & crashes, removed obsolete plugins from build

git-svn-id: https://lmms.svn.sf.net/svnroot/lmms/trunk/lmms@529 0778d3d1-df1d-0410-868b-ea421aaaa00d

Makefile.am

@@ -35,7 +35,7 @@ AM_CXXFLAGS := $(AM_CXXFLAGS) $(QT_CXXFLAGS)
 	$(MOC) -o $@ $<
 
 %.ts: 
-	$(LUPDATE) $(lmms_SOURCES) `find plugins/ -type f -name *.cpp` -ts data/locale/$@
+	$(LUPDATE) $(lmms_SOURCES) `find plugins/ -type f -name "*.cpp"` -ts data/locale/$@
 
 %.qm: %.ts
 	$(LRELEASE) $<