more travis fixes

Author: vishnubob

.gitignore

@@ -1,3 +1,4 @@
 build
 *.pyc
 .coverage
+.*.sw?

.travis.yml

@@ -1,13 +1,13 @@
 language: python
 python:
-    - 2.6
     - 2.7
 before_install:
     - date -u
     - uname -a
     - lsb_release -a
     - sudo apt-get -qq update
-    - sudo apt-get install build-essential python-dev swig libasound2-dev
+    - sudo apt-get install build-essential python-dev swig2.0 libasound2-dev
+    - swig -version
 install:
     - pip install coveralls
     - python setup.py install