Changed registration views to cbv.
Changed profile views to cbv.
Changed accountverification views to cbv.
Changed emailverification views to cbv.
Added travis-ci.
Changed .travis.yml.
Added django 1.5, dropped django 1.3 support.
Removed django 1.3 from .travis.yml
Updated example project layout.
Merge branch 'example'
Merge branch 'django15'
Merge branch 'cbv'