Removed the gradle project structure and start a Maven based project

[jTzipi]

On my system (Linux 64bit, Fedora 21, Netbeans 8.1, JDK 8u51, Gradle installed) the gradle build failed. So I decide to create a new project based on Maven.

[miho]

I think it makes much more sense to fix the gradle build instead of replacing it.

[jTzipi]

Yes. This is true. Since I did not have the knowledge about gradle I rebuild the project based on Maven. The main purpose is not to tweak the build system but to work on the controls. So you can ignore this pull request. I have add a new branch where I work on.

[HanSolo]

Btw..this is the old version of Enzo, the current version is hosted on bitbucket for some time already...