update the Traditional Chinese translation

update some obvious untranslated phrases (e.g. Litecoin->Dogecoin).

Conflicts:

	src/qt/locale/bitcoin_zh_TW.ts
Performed simple search/replace on Bitcoin/Dogecoin in Chinese translation.
Update the Traditional Chinese translation

delete a sentence that is not in the original English source.
Merge pull request #1 from lexical/1.7-dev-chinese

Update the Traditional Chinese translation
Merge pull request #441 from rnicoll/1.7-dev-chinese

Merge Chinese translation changes into 1.7