Guardian: Australia’s caretaker prime minister, Julia Gillard, has signed a deal with the Greens that will ensure their support for Labor in the country’s hung parliament. Two and a half weeks after the election, both Gillard’s Labor and the conservative opposition are still three seats short of an overall majority, with four independent MPs yet to decide whom they will support. In return for the Greens’ backing, Labor has agreed to a number of concessions on policies and parliamentary …