All options not enclosed in quotes but taken separately + Java folder should be used as working directory

* All options not enclosed in quotes but taken separately
otherwise all options were interpreted as one single option

* Java folder should be used as working directory
it worked with my previous launcher (apple JavaApplicationStub) this way and I need it this way
because some arguments are interpreted as files to be contained in the working directory

Sorry for two changes in one commit.
I needed the both changes to be able to use your launcher for my project Freeplane

https://github.com/freeplane/freeplane
http://freeplane.sourceforge.net/wiki/index.php/Main_Page

Kind regards,
Dimitry Polivaev