replace cs-bugtool by cloud-bugtool, we agreed this new name internally
- added suport for options handling
- added logic to handle different option
  1. skip cloud database dump
  2. collect only the latest CloudStack and system logs
  3. but also we can collect all the system
     or all CloudStack logs
  4. there is a logic which prevent copy the same log files twice
  5. We now can execute in minimal, normal and full mode
- help implemented
- bump the version number as previus commit intriduced a lot of changes
- fix all cosmetics reported by pep8
- replace genManifestFile function name by addManifestFile
- fix: we did not include manifest file in final output, add it after we compressed all the logs
- changes in usage(), reformating and new staff