SL4FJ dependency version problem

This is due to `edu.ucar:netcdf` lib which comes from `tika-parsers` dependency.

```
[INFO] +- org.apache.tika:tika-parsers:jar:1.5:compile
[INFO] |  +- edu.ucar:netcdf:jar:4.2-min:compile
[INFO] |  |  \- org.slf4j:slf4j-api:jar:1.5.6:compile
```

We can exclude this library from the generated ZIP artifact.

Closes #41.