copy binary to subfolder
Merge pull request #10 from aheissenberger/fix/Dockerfile-bin-repaces-directory

fixed the copy command to not replace the existing src directory
default to short command help and add help command for log info and error msg for not existing commands
Merge pull request #14 from aheissenberger/feature/help-cmd

default to short command help
Removed redundent COMMNAD from short usage info
More git-style command line help syntax
import ${HOME}/.boot2docker/profile