Attempting to fix AppVeyor build.

Author: ezzatron

appveyor.yml

@@ -9,14 +9,14 @@ install:
   - sc config wuauserv start= auto
   - net start wuauserv
   - cinst -y php
-  - cd c:\tools\php71
+  - cd c:\tools\php72
   - copy php.ini-production php.ini
   - echo date.timezone="UTC" >> php.ini
   - echo extension_dir=ext >> php.ini
   - echo extension=php_mbstring.dll >> php.ini
   - echo extension=php_openssl.dll >> php.ini
   - cd C:\projects\eloquent
-  - SET PATH=C:\tools\php71;%PATH%
+  - SET PATH=C:\tools\php72;%PATH%
   - appveyor-retry php -r "readfile('http://getcomposer.org/installer');" | php
   - appveyor-retry php composer.phar install --prefer-source --no-interaction