Convert maximum length to integer in name_check

This patch converts maximum_length to integer in
name_check middleware if read from proxy-server.conf
file.

Change-Id: I28d66fd1b7ce56ca5540cb7189d084c36e063d43
Closes-Bug: 1372397
Ssync does not replicate custom object headers

Closes-Bug: #1329093

Change-Id: Ie9d80089a38d7a9b3464c66237d4d2d23331ebd5
Some assignment statements are redundant

Don't need to initialize with false, only determine true conditional
directly.

Closes-Bug: 1379149

Change-Id: I8685896b8dd9f7008b8b2311a2ad2a56c95a8bc6
Merge "Ssync does not replicate custom object headers"
Merge "Some assignment statements are redundant"
Merge "Convert maximum length to integer in name_check"