Added Travis + coveralls

.coveragerc

@@ -0,0 +1,12 @@
+[run]
+source = MDAnalysis
+
+exclude_lines =
+    pragma: no cover
+
+[report]
+exclude_lines =
+    pragma: no cover
+    def __repr__
+    raise NotImplementedError
+    if __name__ == .__main__.: 

.travis.yml

@@ -0,0 +1,22 @@
+language: python
+python:
+  - "2.7"
+# command to install dependencies
+before_install:
+  - sudo apt-get update -qq
+  - sudo apt-get install -q -y gfortran libhdf5-serial-dev libnetcdf-dev liblapack-dev libatlas-dev
+  - wget http://repo.continuum.io/miniconda/Miniconda-latest-Linux-x86_64.sh -O miniconda.sh
+  - chmod +x miniconda.sh
+  - ./miniconda.sh -b
+  - export PATH=/home/travis/miniconda/bin:$PATH
+  - conda update --yes conda
+install:
+  - conda install --yes python=$TRAVIS_PYTHON_VERSION cython numpy scipy biopython matplotlib networkx netcdf4
+  - pip install package/
+  - pip install testsuite/
+  - pip install coveralls
+# command to run tests
+script:
+  - nosetests --with-coverage --cover-package MDAnalysis
+after_success:
+  coveralls