Patch-1

Bug fixes:

- Fixed filename
- Updated tarball download url in 'install.sh'
- How can 'update_abtcore.sh' will delete itself ? This should be done
  by calling script 'update_core.sh'(previously: RUNME.sh)
- You ask user for response, but delete '/data/local/abt/root/ABTcore'
  without even prompting