Add TRAVIS_BUILD_DIR to passenv

Author: mateimicu

tox.ini

@@ -4,6 +4,7 @@ skipsdist = True
 envlist = python, bash, html, css, php
 
 [testenv]
+passenv = TRAVIS_BUILD_DIR
 setenv = VIRTUAL_ENV={envdir}
 deps = -r{toxinidir}/requirements.txt                                                                                                                                                     
 install_command = pip install -U --force-reinstall {opts} {packages}