add getAllRepl rest api

Change-Id: I48abf608029d4d3cbf4166440c198aea156b1626

fix all repl api

Change-Id: Ifa41df0ba693cbdf5ccb53801a208751f65e6c0c

add filter expression

Change-Id: Idba50559fa575f7469bcd32beddac3b3f04b8f85
Reviewed-on: http://review.couchbase.org/44594
Reviewed-by: Xiaomei Zhang <xiaomeizhangatwork@gmail.com>
Tested-by: Yu Sui <ysui68@gmail.com>