Added tox.ini to runtests on multiple python envs

Also updated python setup.py test to run in CI configuration

.gitignore

@@ -5,3 +5,7 @@
 test_elasticsearch/cover
 docs/_build
 elasticsearch.egg-info
+.tox
+*.egg
+coverage.xml
+nosetests.xml

setup.py

@@ -21,6 +21,8 @@ tests_require = [
     'nose',
     'coverage',
     'mock',
+    'pyaml',
+    'nosexcover'
 ]
 
 # use external unittest for 2.6

test_elasticsearch/run_tests.py

@@ -9,8 +9,8 @@ def run_all(argv=None):
     # always insert coverage when running tests
     if argv is None:
         argv = [
-            'nosetests',
-            '--with-coverage', '--cover-package=elasticsearch', '--cover-erase',
+            'nosetests', '--with-xunit',
+            '--with-xcoverage', '--cover-package=elasticsearch', '--cover-erase',
             '--nocapture', '--nologcapture',
             '--verbose',
         ]

tox.ini

@@ -0,0 +1,4 @@
+[tox]
+envlist = py26,py27,py33,pypy
+[testenv]
+commands = python setup.py test