Merge pull request #843 from yason/master

fix library name
Merge pull request #845 from yason/master

Don't hardcode -levent in linker flags. Use @LIBEVENT_LIBS@ instead
Ensure that any quoted arguments passed to seaf-cli-wrapper.sh are not
un-quoted when passed to seaf-cli.py. Fixes issue #848 where directories
containing spaces could not be specified as arguments to seaf-cli.
Merge pull request #849 from tajmorton/cli-quote-arg

Ensure that any quoted arguments to seaf-cli are not lost