Optional true not necessary. Optional false is already default. Remove jar build. Fix pom url.
Optional true not necessary. Optional false is already default. Remove jar build. Fix pom url.

git-svn-id: f5921e6c9a61b6015ffa18fe349c03fb73f2cf99@2010 998562b1-c221-4fe5-b3d3-2fd2107a5f19

yokuyuki/Enrichr,yokuyuki/Enrichr,yokuyuki/Enrichr