Call coverage from command line.

So that function definition lines show as tested.

Author: ketch

.coveragerc

@@ -0,0 +1,4 @@
+[report]
+omit =  
+    */python?.?/*
+    */site-packages/nose/*

.travis.yml

@@ -8,7 +8,7 @@ before_install:
 
 install: "pip install -r requirements.txt"
 
-script: python tests.py --with-doctest --with-coverage --cover-package=nodepy;
+script: coverage run --source=nodepy tests.py
 
 after_success:
   - coveralls

tests.py

@@ -1,7 +1,25 @@
 #!/usr/bin/env python
 
 import matplotlib
-import nose
+import doctest
+import nodepy
 matplotlib.use('agg')
+import unittest
 
-nose.main()
+for module_name in ('runge_kutta_method',
+                    'linear_multistep_method',
+                    'ivp',
+                    'low_storage_rk',
+                    'rooted_trees',
+                    'snp',
+                    'stability_function',
+                    'general_linear_method',
+                    'ode_solver',
+                    'semidisc',
+                    'strmanip',
+                    'utils',
+                    'convergence'):
+    module = nodepy.__getattribute__(module_name)
+    doctest.testmod(module)
+
+unittest.main(module='nodepy.unit_tests',exit=False)