enh: adding coveralls

Author: satra

.coveragerc

@@ -0,0 +1,7 @@
+[run]
+branch = True
+source = nipype
+include = */nipype/*
+omit =
+    */nipype/externals/*
+    */setup.py

.travis.yml

@@ -1,4 +1,3 @@
-language: python
 python:
     - "2.7"
 before_install:
@@ -22,10 +21,14 @@ before_install:
     - source ~/virtualenv/this/bin/activate
     - pip install https://github.com/RDFLib/rdflib/archive/master.zip
     - pip install https://github.com/satra/prov/archive/enh/rdf.zip
+    - pip install coverage
+    - pip install coveralls
 install:
     - source ~/virtualenv/this/bin/activate
     - python setup.py build_ext --inplace
 script:
     - source ~/virtualenv/this/bin/activate
     - make test
-
+    - if [ "${COVERAGE}" == "--with-coverage" ]; then make test-coverage; fi
+after_success:
+    - if [ "${COVERAGE}" == "--with-coverage" ]; then coveralls; fi