Add Mac keyboard control keys symbols
duplicated symbols
添加字頻

字頻得自http://www.emojitracker.com，統計自twitter.com
Revert "duplicated symbols"

This reverts commit 0ed6131dc93209d737d2da711b159eecfd90c342.
Revert "Add Mac keyboard control keys symbols"

This reverts commit b7b49f09b5e458ddb831855ff6eaf83bc2754a53.
terra_pinyin: 裳/+shang5/
essay: 分離「醯」（xi1）與「酰」（xian1）
essay & x_pinyin: 依據OpenCC用字修正「虱」爲「蝨」。
essay & x_pinyin: 依據OpenCC用字修正「嫻」、「鐧」爲「嫺」、「鐗」。

請注意同步更新小狼毫繁轉簡OpenCC詞典，有批量更新。

詳見https://github.com/BYVoid/OpenCC/commit/5cbb074c07facb33a16425fb502524cc6905de52
Merge remote-tracking branch 'kunki/master'
Merge remote-tracking branch 'siuezhai/master'