Use String#encode in text_cleaner
Merge pull request #82 from leknarf/master

Clean text without Iconv to support Ruby 2.0
Add /usr/lib64 to office_search_paths

As it's used by Oracle RHEL 6.3 and probably by RHEL in general.
Merge pull request #88 from elia/patch-1

Add /usr/lib64 to office_search_paths