Update NEWS for 1.7.4
Update NEWS for 1.7.4

MatteoNardi/Tomboy,tomboy-notes/tomboy,rmayr/privatenotes-tomboyaddin,oluc/tomboy,rmayr/privatenotes-tomboyaddin,tomboy-notes/tomboy,rotty3000/tomboy,tomboy-notes/tomboy,oluc/tomboy,oluc/tomboy,MatteoNardi/Tomboy,rotty3000/tomboy,MatteoNardi/Tomboy,oluc/tomboy,rmayr/privatenotes-tomboyaddin,MatteoNardi/Tomboy,tomboy-notes/tomboy,oluc/tomboy,MatteoNardi/Tomboy,MatteoNardi/Tomboy,tomboy-notes/tomboy,rotty3000/tomboy,rmayr/privatenotes-tomboyaddin,oluc/tomboy,rotty3000/tomboy,rotty3000/tomboy,rmayr/privatenotes-tomboyaddin