travis: use/create wheels and cache them between builds
travis: use/create wheels and cache them between builds

Ref: http://docs.travis-ci.com/user/caching/

shubhamdipt/django-autocomplete-light,shubhamdipt/django-autocomplete-light,Eraldo/django-autocomplete-light,Perkville/django-autocomplete-light,Visgean/django-autocomplete-light,yourlabs/django-autocomplete-light,Eraldo/django-autocomplete-light,dsanders11/django-autocomplete-light,dsanders11/django-autocomplete-light,Visgean/django-autocomplete-light,Perkville/django-autocomplete-light,luzfcb/django-autocomplete-light,Perkville/django-autocomplete-light,yourlabs/django-autocomplete-light,yourlabs/django-autocomplete-light,luzfcb/django-autocomplete-light,shubhamdipt/django-autocomplete-light,Eraldo/django-autocomplete-light,luzfcb/django-autocomplete-light,Visgean/django-autocomplete-light,dsanders11/django-autocomplete-light,yourlabs/django-autocomplete-light,shubhamdipt/django-autocomplete-light,Perkville/django-autocomplete-light,dsanders11/django-autocomplete-light,Eraldo/django-autocomplete-light,luzfcb/django-autocomplete-light,Visgean/django-autocomplete-light