Added ant targets and remove the docs folder (issue #30)

[dktcoding]

This PR seems like a big one, but really isn't (see issue #30):

• Added ant targets (this list doesn't contain the auxiliary targets):
  • build-all packages the three jars (compiled, sources, docs) //<- some call it release
  • doc generates documentation
  • test runs all tests
  • jar simply creates the compiled jar
• Added an arbitrary version number 0.1 this should be handled in the future by mvn
• Remove 5Mb of docs/ which wasn't updated, and with the doc target we'll always have the latest one
• Added .gitignore rule for doc/ (which is the standard name)
• Fix a warning in JavaDoc (so it works flawlessly)