Upgrade faraday version

[sashazykov]

I can't use the gem together with koala

Bundler could not find compatible versions for gem "faraday":
  In Gemfile:
    vkontakte_api (~> 1.3) ruby depends on
      faraday (< 0.9, >= 0.7.4) ruby

    koala (~> 1.8.0rc1) ruby depends on
      faraday (0.9.0)

[7even]

Something's wrong with your bundle. Koala shouldn't require faraday (0.9.0), it simply does not have a version constraint.

I'd suggest adding

gem 'faraday', '< 0.9'

to your Gemfile and doing bundle update faraday.

vkontakte_api depends on faraday_middleware which in turn does not support faraday 0.9 yet.

[7even]

Added faraday 0.9 support in 1.4.