Fix of missing <email> end element in pom.xml

Maven error was: (wrapped lines)

[ERROR] Non-parseable POM /home/libor/tmp/jssg-fork/jssg/pom.xml:
end tag name </name> must match start tag name <email> from line 13
(position: TEXT seen ...<email>a.grison@gmail.com</name>... @13:35)
 @ line 13, column 35 -> [Help 2]
Rename of jssh.sh to jssh to reflect README documentation
jssg launcher script improvements

* added executable bit
* fixed relative path to JSSG JAR issue
** before path to JSSG JAR was in root but was in target/
** script didn't resolve relative path from outside root
Add .gitignore to ignore Maven target/ folder
Merge pull request #1 from bircow/master

Fix of missing <email> end element in pom.xml