[pinyin] fix issue of remind of pinyin

1. enter -> cause uncleared raw buffer commit, resolved by clear the
buffer.
2. non-selection key should clear the remind state.
[tools] remove .. useless while(0)
[fcitx] drop enter to do option
[table] fix erbi punc ignore (empty list means ignore everything), clear preedit for by pass key blocker.
[trans] Update Translation
Merge pull request #1 from fcitx/master

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