DisableCAS support

[lovelock]

#112 #111

[tkanos]

Thanks @lovelock, It will be appreciated for McRouter with replication.

McRouter with replication gives us for gets an error :

SERVER_ERROR unexpected result mc_res_unknown (0) for get

I will use your branch waiting the merge of @bradfitz

Thanks,

[lovelock]

Thanks @lovelock, It will be appreciated for McRouter with replication.

McRouter with replication gives us for gets an error :

SERVER_ERROR unexpected result mc_res_unknown (0) for get

I will use your branch waiting the merge of @bradfitz

Thanks,

my pleasure

[eivindam]

Will this change be merged?

[dormando]

it looks like the meat of this PR is here... the DisableCAS bool that changes the command sent.

[dormando]

I like the concept of not using the CAS-y commands by default (didn't realize that was what was happening), however this PR has a lot of unrelated changes.

I'm guessing the user is long gone, but if the PR could be reduced to just the intended change it would have a better chance.

[mrauer]

Simple: #192 @dormando

[lovelock]

I like the concept of not using the CAS-y commands by default (didn't realize that was what was happening), however this PR has a lot of unrelated changes.

I'm guessing the user is long gone, but if the PR could be reduced to just the intended change it would have a better chance.

Oh I didn't realized that all the changes I've made after this PR were all synced here. In fact the initial commit was like what @mrauer did, see 1af313e, but the author didn't want to merge that and I then added some other features for my use cases. I'll close this PR to avoid more misunderstandings.