Shaded jar not minimized

Shaded jar package are not minimized to avoid future dependences between
modules
storm.default CLUSTER_CONF_DIR fixed
Fix package issues

This fix is related to #90 , and fix following bugs
- Storm supervisor daemon dies when an active topology is killed and
can´t start until storm-local dir is removed
- Configuration path not set properly:Current /etc/storm
Set to /etc/storm/conf
- storm kafka doesn't remove simbolic link after package remove
Merge pull request #111 from mvalleavila/development

Fix package issues