Cleanup and handle 2 issues

In this pull request, I've cleaned up the repository by deleting IDE files and removing artifacts. I've also removed the need to specify external maven repositories.
Following commits upgrade Jasper Reports to 5.5 (resolving GPJASPER-57), merge pull request #4, added a simple README.md, and set the version to 1.7-SNAPSHOT (the version in a branch should always be a SNAPSHOT, tagged/released version should always be non-SNAPSHOTs).

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These changes should make the project easier to maintain and easier for new contributors.

Thanks for your hard work - if you could also release a new version, I'd really appreciate it!