use findChildren() instead of deprecated qFindChildren
changed i=i to i=0 in tiff2pdf.c
patch for DDJVUAPI_VERSION 22
added spanish translation
Fix preference dialog language selection combo
refresh translations with lupdate-qt4 for compatibility
mingw/cygwin/mac link with Xt/GLib as appropriate
Added & for 150% magnification (M. Molina)