Update #9

- Rework paths, always prefer dynamic paths over static paths
- Rework cleaning up part
- Update adt-bundle version
- Rework adt-bundle installation (output folder was ~/adt-bundle/adt-bundle-linux-x86_64-20130917/sdk instead of ~/adt-bundle/sdk, thus making configured environment variables also useless. fixed now)
- Add desktop shortcuts to SDK Manager and Eclipse
- Removed faulty param of wget for downloading Make
- Removed "pause" before final pause since the next action is no new step of the installation but it's the completion message