Escape preg_match and save responses

* ddf941bbfa6bd4736418e1e91a5137e791607822 - When using ```php $this->getUserByTwitterUsername() ```, if Twitter username has an underscore or similar (@example_username), ```php $this->assertValidUserIdForNetwork()  ``` will throw an error and not allow the username to be pulled through Klout. This is a quick workaround to disable preg_match.

* 0928c19031807984efdfec09712c55aaa99b9e5b - Allow us to return the entire Klout response from influencers and topics e.g with the same array structure