Squashed commit of the following:
Squashed commit of the following:

commit abc22b8078bc549972e71a8f3a5b0f0a9f6571c1
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 14:00:44 2015 +0100

    Update .travis.yml

commit 0ca8dd152206cb0462a03502493f4a9426a4f5da
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 13:57:18 2015 +0100

    Update .travis.yml

commit 65164b7a138829ae7ec2370be65efd509308f30b
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 13:54:04 2015 +0100

    Update .travis.yml

commit 5e40f815adccc6fc6b11db7ab54b80d412756c1b
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 13:30:26 2015 +0100

    Update .travis.yml

commit ce0dc0516861e103c7de774ac423ae879589174f
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 13:27:24 2015 +0100

    Update .travis.yml

commit f2b097180dbb83d111f2188840b2f9f8a995afe8
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 13:22:50 2015 +0100

    Update .travis.yml

commit aa2a9339e0e8a7aa4fa23817eb77f9ce4e0f4f49
Author: Mirth Hickford <mirth.hickford@gmail.com>
Date:   Sat Jul 4 13:17:57 2015 +0100

    Update .travis.yml

hickford/primesieve-python,jakirkham/primesieve-python,anirudhjayaraman/primesieve-python