requester: fix unicode param encoding bug

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
cloudmonkey: add Ctrl+R reverse search support back to OSX

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>
cloudmonkey: Fix unicode and string handling in pipes and shell executions

Signed-off-by: Rohit Yadav <rohit.yadav@shapeblue.com>