Add coveralls files and update Travis to use them

.coveragerc

@@ -0,0 +1,9 @@
+[run]
+source = streamparse
+omit =
+    */python?.?/*
+    */lib-python/?.?/*.py
+    */lib_pypy/_*.py
+    */site-packages/ordereddict.py
+    */site-packages/nose/*
+    */unittest2/*

.travis.yml

@@ -7,9 +7,18 @@ python:
   - "pypy"
 
 install:
-  - "python setup.py --version"
-  - "travis_retry pip install -r requirements.txt"
-  - echo ${TRAVIS_PYTHON_VERSION}
+  - travis_retry pip install -r requirements.txt
+  - travis_retry pip install python-coveralls coverage nose-cov
+  - sudo rm -rf /dev/shm
+  - sudo ln -s /run/shm /dev/shm
+  - echo TRAVIS_PYTHON_VERSION=${TRAVIS_PYTHON_VERSION}
   - if [ ${TRAVIS_PYTHON_VERSION:0:1} != "3" ]; then travis_retry pip install contextlib2; fi
+  - python setup.py --version
 
-script: nosetests
+# Run test
+script:
+  - nosetests -v --with-cov --cov streamparse --cov-config .coveragerc --logging-level=DEBUG
+
+# Calculate coverage on success
+after_success:
+  - coveralls --config_file .coveragerc