Merge pull request #110 from BitOne/php74_release

Officially supports 7.4 and removes support for 5.5

Author: BitOne

.travis.yml

@@ -12,12 +12,8 @@ php:
   - nightly
 
 matrix:
-  include:
-    - php: 5.5
-      dist: trusty
   allow_failures:
     - php: nightly
-    - php: 7.4
 
 before_script:
   - phpenv config-rm xdebug.ini

README.md

@@ -10,7 +10,7 @@ One of the main sources of inspiration for this tool is the Java jmap tool with
 
 Compatibility
 -------------
-PHP 5.5, 5.6, 7.0, 7.1, 7.2 and 7.3.
+PHP 5.6, 7.0, 7.1, 7.2, 7.3 and 7.4.
 
 May compile and work with PHP 5.3 and 5.4 but hasn't been tested with these versions.