Making proxy to be compliant with Sinatra 1.4.2 release

[lzap]

This change in Sinatra 1.4.2

https://github.com/sinatra/sinatra/pull/626/files

introduces new class AcceptEntry which is used for comparison of the accept
flag. Since we use request.accept.include? it does not work anymore on my
system:

(rdb:3) pp request.accept
[application/json]

(rdb:3) pp request.accept.include?("application/json")
false

(rdb:3) pp request.accept[0].class
Sinatra::Request::AcceptEntry

This patch changes all places where we use this comparison and changes it to
the standard way. This should be compatible across old Sinatra versions, but
please confirm this explicitly.

[lzap]

Ok I have tracked down what is our minimum version for my patch (search for "accept?"):

= 1.3.0 / 2011-09-30

https://github.com/sinatra/sinatra/blob/master/CHANGES

Is this acceptable?

[domcleal]

+1, fixes it for me on sinatra 1.4.3 and 1.3.2.

[domcleal]

1.3.0's not going to be old enough for our RHEL 6 install, which has rubygem-sinatra 1.0.2 from EPEL.

[lzap]

Let me do a monkey patch for older Sinatra versions.

[lzap]

Here it comes, tested with Sinatra 1.2.9 and 1.4.2.

[domcleal]

[test]

[ohadlevy]

@lzap does it mean that 1.2.9 also represents 1.02?

[ohadlevy]

shouldnt this be restricted based on sinatra version?

[lzap]

Right that is better. Rebased. [test]

[ohadlevy]

merged - thanks