run all tests in instrumental

since now test_malformed_sigs.py executes quickly, we can run it under
instrumental

Author: tomato42

.travis.yml

@@ -87,15 +87,12 @@ script:
         instrumental -f .instrumental.cov -s
         instrumental -f .instrumental.cov -s | python diff-instrumental.py --save .diff-instrumental
         git checkout $BRANCH
-        files="$(ls src/ecdsa/test*.py | grep -v test_malformed_sigs.py)"
-        instrumental -t ecdsa -i 'test.*|.*_version' `which pytest` $files
+        instrumental -t ecdsa -i 'test.*|.*_version' `which pytest` src/ecdsa
         instrumental -f .instrumental.cov -sr
       fi
   - |
       if [[ $INSTRUMENTAL && $TRAVIS_PULL_REQUEST == "false" ]]; then
-        # exclude the super slow test_malformed_sigs.py, until #127 is merged
-        files="$(ls src/ecdsa/test*.py | grep -v test_malformed_sigs.py)"
-        instrumental -t ecdsa -i 'test.*|.*_version' `which pytest` $files
+        instrumental -t ecdsa -i 'test.*|.*_version' `which pytest` src/ecdsa
         instrumental -f .instrumental.cov -s
         # just log the values when merging
         instrumental -f .instrumental.cov -s | python diff-instrumental.py