Revert changes

tox.ini

@@ -84,16 +84,6 @@ deps =
     lxml
     coverage
 
-extras = all
-
-whitelist_externals =
-    sh
-
-setenv =
-    {[base]setenv}
-
-passenv = *
-
 commands =
     /usr/bin/find "{toxinidir}" -name '*.pyc' -delete
     # Make all greater-thans equals so we test the oldest version of our direct
@@ -104,9 +94,9 @@ commands =
     # Add this so that coverage will run on subprocesses
     /bin/sh -c 'echo "import coverage; coverage.process_startup()" > {envsitepackagesdir}/../sitecustomize.py'
 
-    {envbindir}/coverage run "{envbindir}/trial"  {env:TRIAL_FLAGS:} {posargs:tests} {env:TOXSUFFIX:}
+    pip install -e .
 
-usedevelop=true
+    {envbindir}/coverage run "{envbindir}/trial"  {env:TRIAL_FLAGS:} {posargs:tests} {env:TOXSUFFIX:}
 
 
 [testenv:packaging]