Merge pull request leancloud#278 from tang3w/bump/0.8.14

Bump version to 0.8.14

fix leancloud#268 able to customize voice cell label

fix bug for MessageSendStateView: turn out to show delivered status view

v0.8.11 lastMessage UI update

Merge pull request leancloud#232 from ChenYilong/master

fix crash bug:pass nil to user system method parameter

Merge pull request leancloud#222 from ChenYilong/master

	v0.8.9 remove `@import` for C++

Merge pull request leancloud#212 from ChenYilong/master

support conversation query for systemConversation and transientConversation

Merge pull request leancloud#207 from ChenYilong/master

Update dependency Lib version

Merge pull request leancloud#203 from ChenYilong/master

cache chat view cell height with key

Merge pull request leancloud#197 from ChenYilong/master

update version