Add configuration file for the test coverage tool.

Exclude the "unittest.main()" lines from coverage analysis.
Also ensure the configuration file is in the travis run directory.

Author: pavoljuhas

.coveragerc

@@ -0,0 +1,13 @@
+# Configuration of the coverage.py tool for reporting test coverage.
+
+[report]
+# RE patterns for lines to be excluded from consideration.
+exclude_lines =
+    ## Have to re-enable the standard pragma
+    pragma: no cover
+    ## Don't complain if tests don't hit defensive assertion code:
+    # raise AssertionError
+    # raise NotImplementedError
+
+    ## Don't complain if non-runnable code isn't run:
+    ^[ ]{4}unittest.main()

.travis.yml

@@ -59,6 +59,7 @@ before_install:
 
   - mkdir -p ~/pkgs/
   - mkdir -p ${MYRUNDIR}
+  - cp .coveragerc ${MYRUNDIR}/
 
   - $NOMC || pushd ~/pkgs/
   - $NOMC || wget --timestamping ${MYMCREPO}/${MYMCBUNDLE}