Made snakeyaml a bundle dependency

Snakeyaml can be deployed as a bundle straight out of maven.

fixes #2

Made guava a bundle dependency

Guava is available as a bundle from maven via mvn:com.googlecode.guava-osgi/guava-osgi

fixes #4

Made commons-lang a bundle dependency

commons-lang is available as a bundle from maven via mvn:org.apache.servicemix.bundles/org.apache.servicemix.bundles.commons-lang

fixes #5

Made json-simple a bundle dependency

json-simple is available as a bundle from maven via mvn:om.googlecode.json-simple/json-simple

fixes #3

Added Ebean as an exported dependency

Ebean is not available as a bundle, nor is it easy to convert it to one.

Ebean is included in the bukkit bundle, which in turn exports ebean.  Changing the project packaging from jar to bundle was necessary to embed ebean.

fixes #6