Fix for GB#615035 - Removing unzip command dependency from ms-office extractor
Fix for GB#615035 - Removing unzip command dependency from ms-office extractor

Initial patch from Amil Aggarwal, updated patch from Aleksander Morgado.

hoheinzollern/tracker,outofbits/tracker,outofbits/tracker,outofbits/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,hoheinzollern/tracker,hoheinzollern/tracker,outofbits/tracker,outofbits/tracker