Use gradle installDist to generate starter script

[jmercier-lbi]

Dear,

This pull request allow gradle to generate starter script using the command

$ gradle installDist

The generated starter script can now take custom configuration by the use of $HADOOP_CONF_DIR and $HADOOP_CLASS_PATH.

Fixes: fix #19 and fix #18

Note:

1. The windows starter script is untested
2. The hdfs-shell script can be run as deamon by providing the flag -d or --daemon

[jmercier-lbi]

Thanks @Vity01 you are right this commit should fix this

[jmercier-lbi]

Hi @Vity01 , did you think this request provides enough satisfaction to be merged ?

Thanks,

Have a nice day