update api

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remove LWQQ_CALLBACK_*

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close #574 restore cancel captcha button

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message use dynamic string

Signed-off-by: xiehuc <xiehuc@gmail.com>
get_group_name_list doesn't need succ_hash by new api

Signed-off-by: xiehuc <xiehuc@gmail.com>
parse <a href="xxx">bbb to <xxx>bbb

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parse <img src='xxx'> to <xxx>

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fix send visual

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release 0.4.0

Signed-off-by: xiehuc <xiehuc@gmail.com>
update ChangeLog and translation

Signed-off-by: xiehuc <xiehuc@gmail.com>