Add script to get ant.jar
Change to ignore lib directory
Simplify the way to make directory if not exist
Change directory structure
Change to create symlinks to LICENSE and NOTICE
Revise build.properties
Fix for creating symlinks
Revise .classpath to refer ant.jar in ./lib
Merge pull request #3 from lmntal/add-get-ant-script

ant.jar を取ってくるスクリプトの追加