[tests] Remove unused travis deps

The CVXOPT python package has some optional dependencies that must be
altered in the setup.py file for support to be compiled in. GLPK is one
if these. At the moment the setup.py script is not being altered while
installing dependencies, so downloading cvxopts extra dependencies is
useless.

Move the test command from .travis.yml to runtests.sh to allow easy
testing on workstations.

.travis.yml

@@ -16,7 +16,10 @@ before_install:
   - sudo apt-get update -qq
   # python-cvxopt package is only available for Python 2.7, so in every other
   # case the build dependencies of cvxopt are installed
-  - if [[ $TRAVIS_PYTHON_VERSION != "2.7_with_system_site_packages" ]]; then sudo apt-get install -qq gcc liblapack-dev libatlas-base-dev libgsl0-dev fftw-dev libglpk-dev libdsdp-dev; fi
+  # Optional CVXOPT dependencies are: libatlas-base-dev libgsl0-dev fftw-dev libglpk-dev libdsdp-dev
+  # However, flags need to be set in the cvxopt/setup.py script which we don't
+  # alter with the current setup
+  - if [[ $TRAVIS_PYTHON_VERSION != "2.7_with_system_site_packages" ]]; then sudo apt-get install -qq gcc liblapack-dev; fi
   # SciPy and NumPy compilation needs a fortran compiler, so if we aren't using
   # sytem site packages then gfortran is installed first
   - if [[ $TRAVIS_PYTHON_VERSION != *"with_system_site_packages" ]]; then sudo apt-get install -qq gfortran; fi
@@ -37,7 +40,6 @@ install:
   - if [[ $TRAVIS_PYTHON_VERSION == *"with_system_site_packages" ]]; then pip install "file://$PWD#egg=pymdptoolbox[LP]"; fi
 # command to run tests
 script:
-  # Is there any difference to using ``python setup.py nosetests``?
-  nosetests --with-coverage --cover-package=mdptoolbox --with-doctest --doctest-options='+NORMALIZE_WHITESPACE,+IGNORE_EXCEPTION_DETAIL'
+  ./runtests.sh
 after_success:
   coveralls

runtests.sh

+#!/usr/bin/env sh
+
+# Is there any difference to using ``python setup.py nosetests``?
+nosetests --with-coverage --cover-package=mdptoolbox --with-doctest \
+    --doctest-options='+NORMALIZE_WHITESPACE,+IGNORE_EXCEPTION_DETAIL'