Print all current dir as I don't get what they do.

.travis.yml

@@ -111,9 +111,16 @@ script:
   - df -h
   - ulimit -a
   - echo "$PART"
+  - pwd
+  - cd ..
+  - pwd
   # Move to the path of the installed version
   - cd $(python -c 'import theano; import os; print(os.path.split(theano.__file__)[0])')
+  - pwd
+  - cd -
+  - pwd
   - cd Theano
+  - pwd
   - python -c 'import theano; print(theano.__version__)'
   - python -c 'import theano; print(theano.config.__str__(print_doc=False))'
   - python -c 'import theano; assert(theano.config.blas.ldflags != "")'