TST+BF: Use separate coveragerc for Travis CI

Should now ignore server/filtergamin.py as gamin is not tested. Also
ignores Travis CI python virtual environments

.coveragerc

@@ -1,4 +1,4 @@
 
 [run]
 branch = True
-omit = /usr* /home/travis/virtualenv/*
+omit = /usr*

.travis.yml

@@ -9,6 +9,6 @@ install:
   - pip install pyinotify
   - if [[ $TRAVIS_PYTHON_VERSION == 2.[6-7] ]]; then pip install -q coveralls; fi
 script:
-  - if [[ $TRAVIS_PYTHON_VERSION == 2.[6-7] ]]; then coverage run fail2ban-testcases; else python ./fail2ban-testcases; fi
+  - if [[ $TRAVIS_PYTHON_VERSION == 2.[6-7] ]]; then coverage run --rcfile=.travis_coveragerc fail2ban-testcases; else python ./fail2ban-testcases; fi
 after_script:
   - if [[ $TRAVIS_PYTHON_VERSION == 2.[6-7] ]]; then coveralls; fi

.travis_coveragerc

@@ -0,0 +1,7 @@
+
+[run]
+branch = True
+omit =
+    /usr/*
+    /home/travis/virtualenv/*
+    server/filtergamin.py