[zh, zh_TW] some inproper mnemonic key in JCP and Deployment.java

In zh_TW JCP, the mnemonic keys of the four newly added button labels in message synch #3 contain extra char &. & should be removed.


viewer.help
general.cache.view.text
cache.settings.dialog.restore_btn
cache.settings.dialog.cacheEnabled



For key api.clipboard.write.always in deployment.java in zh_CN and TW, mnemonic key A is missing.