BUILDR-113: 'warn_that' was renamed to 'show_warning' (Lacton)
BUILDR-113: 'warn_that' was renamed to 'show_warning' (Lacton)

git-svn-id: f481de8ecb0d1e2ade8c586a5c716a32a1f3e8c1@680807 13f79535-47bb-0310-9956-ffa450edef68

mariusk/buildr-kawa,liamchristopher/buildr,jpcaruana/buildr,liamchristopher/buildr,stewi2/buildr,stewi2/buildr,liamchristopher/buildr,jpcaruana/buildr,jpcaruana/buildr,apache/buildr,ittayd/buildr,assaf/buildr,apache/buildr,stewi2/buildr,apache/buildr,atoulme/buildr,mariusk/buildr-kawa,ittayd/buildr,jpcaruana/buildr,atoulme/buildr,apache/buildr,assaf/buildr,atoulme/buildr,stewi2/buildr,assaf/buildr,ittayd/buildr,liamchristopher/buildr,mariusk/buildr-kawa