fixes setup steps for Travis CI

.travis.yml

@@ -8,9 +8,11 @@ addons:
   postgresql: "9.3"
 
 # command to install dependencies
+# Note: there's an echo at the end of pip install. It allows to override the default return code which is not 0
+# because some packages need to be ugraded to python3 (invalid python syntax because of python2 source code)
 install:
-  - "cd tracim && python setup.py develop && cd -"
-  - "pip install -r install/requirements.txt"
+  - "cd tracim && python setup.py develop; cd -"
+  - "pip install -r install/requirements.txt; echo"
   - "./bin/tg2env-patch tg2env/"
   
 before_script:

install/requirements.txt

@@ -20,7 +20,6 @@ cmd2==0.6.7
 coverage==4.0a1
 crank==0.7.1
 decorator==3.4.0
-distribute==0.7.3
 gearbox==0.0.6
 itsdangerous==0.24
 nose==1.3.4