Merge pull request #165 from Xerkus/patch-1

docs: serialize example fix
Removing useless comment causing overflow
Parameter generator was updated in `zendframework/zend-code:2.3.2`, therefore escaping changed
Merge pull request #169 from Ocramius/hotfix/parameter-escaping-test-hotfix

Parameter generator was updated in `zendframework/zend-code:2.3.2`, therefore escaping changed
Add References Badge to Readme
Merge pull request #171 from reiz/master

Add References Badge to Readme
File `.travis.install.sh` should not be executable
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Merge pull request #173 from Ocramius/hotfix/automated-cs-checks-fixes

Automated cs checks fixes
Removing conditionals about HHVM from `src` code
Removing conditionals about HHVM from `tests` code
Less strict fatal error message checks in access interceptor protected properties unset
Less strict fatal error message checks in access interceptor protected properties write
Less strict fatal error message checks in access interceptor scope localizer protected properties unset
Less strict fatal error message checks in access interceptor scope localizer private properties write
Less strict fatal error message checks in access interceptor scope localizer protected properties unset
Less strict fatal error message checks in access interceptor scope localizer protected properties write
Less strict fatal error message checks in ghost object protected properties unset