[STORM-447] shade/relocate packages of dependencies that are common causes of dependency conflicts

This shades and does package relocation of several of Storm's dependencies that frequently conflict with user code (Netty, Guava, etc.).

This also fixes: STORM-356, STORM-268

Note that due to transitive dependencies, some additional dependencies had to be shaded as well (Curator and ZooKeeper).
@ptgoetz this is causing the storm-dist/binary build not to include zookeeper-*.jar in the libs