Added a more comprehensive .gitignore file
Enabled Maven and squashed some unresolved bugs in the process.
Since Maven needs to have an specific hierarchy, much of the old jReddit code has been moved to the correct folder.

Also, some changes that were left uncorrected on jReddit have been corrected now. Namely, a call tu Submissions enums.

This, by no means, should be taken as the final base for jSnoo, but it gives one initial successful build for jReddit with Maven.