WINDUP-606: Add description element to <metadata> in schema.
WINDUP-606: Add description element to <metadata> in schema.

windup/windup,Maarc/windup,windup/windup,mareknovotny/windup,mareknovotny/windup,windup/windup,lincolnthree/windup,johnsteele/windup,mbriskar/windup,lincolnthree/windup,Maarc/windup,johnsteele/windup,windup/windup,d-s/windup,mareknovotny/windup,johnsteele/windup,OndraZizka/windup,d-s/windup,d-s/windup,jsight/windup,Ladicek/windup,lincolnthree/windup,mbriskar/windup,OndraZizka/windup,OndraZizka/windup,Ladicek/windup,Ladicek/windup,lincolnthree/windup,johnsteele/windup,jsight/windup,mbriskar/windup,mareknovotny/windup,jsight/windup,Ladicek/windup,jsight/windup,Maarc/windup,OndraZizka/windup,d-s/windup,Maarc/windup,mbriskar/windup