Configure pyinstaller build

Squashed commit of the following:

commit 18cfe73a
Author: Inso <insomniak.fr@gmail.com>
Date:   Sun Jan 31 17:14:35 2016 +0100

    Try with .spec file

commit 8db8d1b5
Author: Inso <insomniak.fr@gmail.com>
Date:   Sun Jan 31 16:01:45 2016 +0100

    Show macos spec file

commit 3c92873f
Author: Inso <insomniak.fr@gmail.com>
Date:   Sat Jan 23 19:06:47 2016 +0100

    Try with develop version

commit 2dfa08fc
Merge: d0f9a90a 37581eaf
Author: Inso <insomniak.fr@gmail.com>
Date:   Wed Jan 20 08:08:49 2016 +0100

    Merge branch 'dev' into pyinstaller

commit d0f9a90a
Author: Inso <insomniak.fr@gmail.com>
Date:   Tue Jan 19 07:57:21 2016 +0100

    Debug logs

commit e215db50
Author: Inso <insomniak.fr@gmail.com>
Date:   Fri Jan 15 20:48:14 2016 +0100

    Test pyinstaller as build system