Chinese Translation fixes

Hello,

1) Renamed values-zh values-zh_rCN in accordance with #329 and Android conventions
2) Added arrays.xml translations for Simplified Chinese (zh_rCN)
3) Added translations (arrays.xml and strings.xml) for Traditional Chinese (zh_rTW)

Please let me know if my translation for Traditional Chinese is okay and if that's the case, I would "backport" some grammar / presentational fixes back to the Simplified Chinese translation.

Thanks
-Isaac