LCL: Avoid duplicate accented chars with GTK2. Test with define "Gtk2LatinAccents". Issue #24750, patch from Éderson Cássio

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42102 4005530d-fff6-0310-9dd1-cebe43e6787f
LCL: fixed TTextSTrings.AddStrings with objects and multi lines, bug 24749

git-svn-id: http://svn.freepascal.org/svn/lazarus/trunk@42103 4005530d-fff6-0310-9dd1-cebe43e6787f