Added documentation for PYTEST_ADDOPTS environment variable, updated CHANGELOG and AUTHORS.

--HG--
branch : env-addopts

AUTHORS

@@ -46,3 +46,4 @@ Trevor Bekolay
 David Mohr
 Nicolas Delaby
 Tom Viner
+Dave Hunt

CHANGELOG

@@ -1,6 +1,8 @@
 2.7.0.dev (compared to 2.6.4)
 -----------------------------
 
+- add ability to set command line options by environment variable PYTEST_ADDOPTS.
+
 - fix issue655: work around different ways that cause python2/3
   to leak sys.exc_info into fixtures/tests causing failures in 3rd party code
 

doc/en/customize.txt

@@ -60,6 +60,11 @@ progress output, you can write it into a configuration file::
     [pytest]
     addopts = -rsxX -q
 
+Alternatively, you can set a PYTEST_ADDOPTS environment variable to add command
+line options while the environment is in use::
+
+    export PYTEST_ADDOPTS="-rsxX -q"
+
 From now on, running ``pytest`` will add the specified options.
 
 Builtin configuration file options