use ffmpeg APIs for thumbnailing

commit c5a839b4618c0c7e2475f2aa906a109d171d31c8
Author: Nyx0uf <benjgodard@me.com>
Date:   Wed Dec 24 11:29:21 2014 +0100

    update readme

commit 78def5b404d5efdcc142a1859c47dd66adabc4f4
Author: Nyx0uf <benjgodard@me.com>
Date:   Wed Dec 24 11:24:09 2014 +0100

    Create movie class to handle thumbnail

    will use later for mdimport

commit dadb1b1393d2e239c6827d58bb79c84628bed69c
Author: Nyx0uf <benjgodard@me.com>
Date:   Wed Dec 24 09:21:37 2014 +0100

    extern NSBundle

commit cc9f36ea4d644fa4f5d4ed4f6cbe3a217d68b289
Author: Nyx0uf <benjgodard@me.com>
Date:   Tue Dec 23 16:22:50 2014 +0100

    link to mediainfo at plugin creation

commit f2f90d06225167387469244acfc7f92e00b48fe7
Author: Nyx0uf <benjgodard@me.com>
Date:   Tue Dec 23 16:13:42 2014 +0100

    cancel check

commit a9efb8417f02bfd24df4b3148d4f84fd2fa265bc
Author: Nyx0uf <benjgodard@me.com>
Date:   Tue Dec 23 16:08:54 2014 +0100

    remove comment

commit 705a4625e7b9b47149839f2780eef46b889c4ad9
Author: Nyx0uf <benjgodard@me.com>
Date:   Tue Dec 23 16:02:52 2014 +0100

    provide static ffmpeg libs

commit 00a5ab0db1a126a8dd75e15aedeb0338367e2ebf
Author: Nyx0uf <benjgodard@me.com>
Date:   Tue Dec 23 15:24:23 2014 +0100

    use ffmpeg APIs to thumbnail

    Don't need a NSTask anymore, feels faster.

commit 215082757b58af05f421202adbbeb70b1a242414
Author: Nyx0uf <benjgodard@me.com>
Date:   Mon Dec 22 15:29:02 2014 +0100

    change hierarchy