Remove the test.log file for each run, use cat's "-v" option

.travis.yml

@@ -9,5 +9,3 @@ before_script:
   - npm install slimerjs
 script:
   - make test
-after_script:
-  - cat test.log

Makefile

@@ -3,10 +3,12 @@
 all: java tests
 
 test: all
+	rm test.log
 	killall python Python || true
 	python -m SimpleHTTPServer &
-	casperjs --engine=slimerjs test `pwd`/tests/automation.js > test.log 2>&1
+	casperjs --no-colors --engine=slimerjs test `pwd`/tests/automation.js > test.log 2>&1
 	killall python Python || true
+	cat -v test.log
 	if grep -q FAIL test.log; \
 	then false; \
 	else true; \