Working Prototype, with prerelease findbugs plugin

This is a prototype that extends the standard set of quick-fixes by a quickfix for the fb-contrib bug pattern Literal String Comparison.

String foo = ...
if (foo.equals("bar")) {
//....
}

gets turned into

String foo = ...
if ("bar".equals(foo)) {
//....
}

See the Readme for installation instructions.

Most importantly, this release has the latest (as of publication) version of the FindBugs Eclipse plugin, the one that publishes the extension point fb-contrib quickfixes. You will need this installed (for now) to run fb-contrib quickfixes