Roll version number forward to 5.3-alpha-10, and modify so that Jenkins build can override version number for its builds
Roll version number forward to 5.3-alpha-10, and modify so that Jenkins build can override version number for its builds

git-svn-id: d9b8539636d91aff9cd33ed5cd52a0cf73394897@1155057 13f79535-47bb-0310-9956-ffa450edef68

apache/tapestry-5,apache/tapestry-5,agileowl/tapestry-5,apache/tapestry-5,agileowl/tapestry-5,agileowl/tapestry-5,apache/tapestry-5,apache/tapestry-5