Merge pull request #7 from shunwen/master

初譯 bitcoin-for-individuals.html
初譯 bitcoin-for-developers.html, bitcoin-for-enthusiasts.html, download.html
初譯 bitcoin-for-businesses.html
Update menu.  Miner fix.
Merge remote-tracking branch 'origin/master'
Merge pull request #3 from jyunfan/master

Sync