fix travis config

Author: ardabeyazoglu

.travis.yml

@@ -2,13 +2,13 @@ sudo: required
 dist: trusty
 language: php
 php:
+  - '5.5'
   - '5.6'
   - '7.0'
   - '7.1'
 
 before_script:
   - if [[ ${TRAVIS_PHP_VERSION:0:1} == "5" ]]; then sudo apt-get -y install php5-intl; fi
-  - if [[ ${TRAVIS_PHP_VERSION:0:3} == "7" ]]; then sudo pecl install -y intl; fi
   - travis_retry composer self-update
   - travis_retry composer install --no-interaction --prefer-source --dev
 

README.md

@@ -1,4 +1,4 @@
-[![Latest Stable Version](https://poser.pugx.org/ardabeyazoglu/datetime/v/stable)](https://packagist.org/packages/ardabeyazoglu/datetime) [![License](https://poser.pugx.org/ardabeyazoglu/datetime/license)](https://packagist.org/packages/ardabeyazoglu/datetime) [![Build Status](https://travis-ci.org/ardabeyazoglu/php-datetime.svg?branch=master)](https://travis-ci.org/ardabeyazoglu/php-datetime) [![Coverage Status](https://coveralls.io/repos/github/ardabeyazoglu/php-datetime/badge.svg?branch=master)](https://coveralls.io/github/ardabeyazoglu/php-datetime?branch=master)
+[![Latest Stable Version](https://poser.pugx.org/ardabeyazoglu/datetime/v/stable)](https://packagist.org/packages/ardabeyazoglu/datetime) [![License](https://poser.pugx.org/ardabeyazoglu/datetime/license)](https://packagist.org/packages/ardabeyazoglu/datetime) [![Build Status](https://travis-ci.org/ardabeyazoglu/php-datetime.svg?branch=master)](https://travis-ci.org/ardabeyazoglu/php-datetime) [![codecov](https://codecov.io/gh/ardabeyazoglu/php-datetime/branch/master/graph/badge.svg)](https://codecov.io/gh/ardabeyazoglu/php-datetime)
 
 # About
 Improved DateTime functionality for php by extending native DateTime and DateTimeZone classes. You can use shorthand methods for various operations. Also, different locales are supported, thanks to `Intl` extension.