Adds build support for PHP 7.4 and updated README to remove older bui…

…ld versions of PHP.

.travis.yml

@@ -1,10 +1,8 @@
 language: php
 
 php:
-  - 5.3
-  - 5.4
-  - 5.5
   - 5.6
+  - 7.0
   - 7.1
   - 7.2
   - 7.3
@@ -13,10 +11,8 @@ php:
 
 matrix:
   allow_failures:
-  - php: 5.3
-  - php: 5.4
-  - php: 5.5
   - php: 5.6
+  - php: 7.0
   - php: nightly
 
 sudo: false

README.md

@@ -19,7 +19,7 @@ Requirements
 * PHP >= 5.5.0
 * cURL
 
-This library is unit tested against PHP 5.5, 5.6, 7.0, 7.1, 7.2, 7.3 and the PHP nightly build!
+This library is unit tested against PHP 5.6, 7.0, 7.1, 7.2, 7.3 and 7.4 build!
 
 License
 -------
@@ -71,7 +71,7 @@ Tests and coverage
 
 This library is fully unit tested using [PHPUnit](https://phpunit.de/).
 
-I use [TravisCI](https://travis-ci.org/) for continuous integration, which triggers tests for PHP 5.5, 5.6, 7.0, 7.1, 7.2, 7.3 and the PHP nightly build every time a commit is pushed.
+I use [TravisCI](https://travis-ci.org/) for continuous integration, which triggers tests for PHP 5.6, 7.0, 7.1, 7.2, 7.3 and 7.4 every time a commit is pushed.
 
 If you wish to run the tests yourself you should run the following: