Rename "flakes" testenv to "linting" as requested in review

.travis.yml

@@ -9,7 +9,7 @@ env:
   matrix:
     - TESTENV=coveralls
     - TESTENV=doctesting
-    - TESTENV=flakes
+    - TESTENV=linting
     - TESTENV=py26
     - TESTENV=py27
     - TESTENV=py27-cxfreeze

CONTRIBUTING.rst

@@ -179,10 +179,10 @@ but here is a simple overview:
    You need to have Python 2.7 and 3.5 available in your system.  Now
    running tests is as simple as issuing this command::
 
-    $ python runtox.py -e py27,py35,flakes
+    $ python runtox.py -e linting,py27,py35
 
    This command will run tests via the "tox" tool against Python 2.7 and 3.5
-   and also perform "flakes" coding-style checks.  ``runtox.py`` is
+   and also perform "lint" coding-style checks.  ``runtox.py`` is
    a thin wrapper around ``tox`` which installs from a development package
    index where newer (not yet released to pypi) versions of dependencies
    (especially ``py``) might be present.

appveyor.yml

@@ -8,7 +8,7 @@ build: false  # Not a C# project, build stuff at the test step instead.
 
 test_script:
   - 'set TESTENVS=
-          flakes,
+          linting,
           py26,
           py27,
           py33,

tox.ini

@@ -2,7 +2,7 @@
 minversion=2.0
 distshare={homedir}/.tox/distshare
 envlist=
-     flakes,py26,py27,py33,py34,py35,pypy,
+     linting,py26,py27,py33,py34,py35,pypy,
      {py27,py35}-{pexpect,xdist,trial},
      py27-nobyte,doctesting,py27-cxfreeze
 
@@ -31,7 +31,7 @@ commands=
 [testenv:genscript]
 commands= py.test --genscript=pytest1
 
-[testenv:flakes]
+[testenv:linting]
 basepython = python2.7
 deps = flake8
      restructuredtext_lint