Commit 620a3fa1d514a0020c17a9a1119400dcdbd97d7a

yuangongji 2019-08-29T19:40:10

Doxygen documentation improvements - Documentation for `bufferevent_compat.h` and `rpc.h` is not generated since the `@file` command is missing. It can be fixed by adding `@file` in file comment block. - The briefs of buffer.h,bufferevent.h and some other files are missing. Adding `@brief` command can fix it. - The parameters in the function declaration are different from the parameters following the `@param` command.We should change them to the same. - Documentation of `watch.h` is not generated since `watch.h` has not been added to the Doxyfile `INPUT` tag. - Add link to the watch.h in event.h