moved configuration from jspwiki-war/pom.xml to ./pom.xml

some inline comments from jspwiki-war/pom.xml moved to mvn_cheat-sheet.txt

git-svn-id: https://svn.apache.org/repos/asf/incubator/jspwiki/branches/MVN3_BRANCH@1486449 13f79535-47bb-0310-9956-ffa450edef68