Bump and republish

[markaschneider]

Can you bump the version and republish to RubyGems so that the current version will use the rest-client 1.8 instead of 1.6?

BTW, rest-client 1.6 depends on an older version of mime-types, whereas rest-client 1.8 allows for newer versions of mime-types, which are supposed to consume less memory.

Thanks.

[paulmakepeace]

Similarly, please remove the pinning on minor versions in the .gemspec except where necessary. Example, 'addressable' is stuck in the 2.3.x series. Probably can just knock off the patch level in most/all cases.

[andrhamm]

Should fix #19 and #38 and possibly others.