Replacing path on bash script

* From ../libs to $(dirname $0)/../libs
Always resolve to its own directory; fix
Merge pull request #19 from pateketrueke/master

Always resolve to its own directory; fix
Bug with buildZip was corrected

   - BuildZip was not executed at first, this because for scripting tasks is necessary to use doLast{...}, other way it is executed during gradle first reading
Conflict solved
Merge pull request #20 from anallely/master

Bug with buildZip was corrected
Merge remote-tracking branch 'marathon/master'