add /usr/local/bin to PATH env
Merge pull request #1 from ainoya/export-usr-local-path

add /usr/local/bin to PATH env
Fix wrong conditional statement

As WORK_DIR was created, lines fixed was not working.
fix: chomp last newline chars when get port number from system call
Merge pull request #2 from ainoya/chomp-port-num-str

fix: chomp last newline chars when get port number from system call
Add ids "\n" separater for each_line method
Fix bug; check whether exists a repository in work dir when cloning the repository
Fix bug; compare image id of ids file with that of docker inspect correctly
Merge pull request #3 from matsumoto-r/fix_docker_build_bug

Fix docker build bug
Modify README
Modify README
Remove useless line
Add license