Update default applications in kickoff

Instead of defaulting to konqueror find the first browser from a list
Change konsole to ktp-contactlist, we want to appeal to non geeks
Change kmail for kontact, we provide a lovely PIM suite so we should show it by default
Change kwrite to Kate, everyone knows how to use tabbed interfaces these days

FEATURE
CHANGELOG
REVIEW:120538
GUI:
DIGEST: