Admin interface: check uniqueness of user in group scope; remove confirmation
ui: js: fix 'FormBehaviours.WarnOnLeave'
Admin interface: prevent creating dirty meta terms
Configure dropbox from config file instead of db

This is a prerequisite to use ansible.

Squashed commit of the following:

commit e9db3ed7624dfa1c5f10fcc20b688f9c015200f1
Author: Thomas Schank <DrTom@schank.ch>
Date:   Fri Aug 8 12:49:15 2014 +0200

    Fix tests and improve dropbox default settings

commit 659a9f7925b3da2576c953544db3e17123e37db3
Author: Thomas Schank <DrTom@schank.ch>
Date:   Fri Aug 8 11:49:53 2014 +0200

    Fix

commit 557a9076630bf68a0e96104912e11bd09d157f12
Author: Thomas Schank <DrTom@schank.ch>
Date:   Fri Aug 8 11:29:06 2014 +0200

    Replace db-dropbox-config with file-dropbox-config

commit 01f6ba733c2ffa2a138b7a91a1bf423adabc3ea6
Author: Thomas Schank <DrTom@schank.ch>
Date:   Fri Aug 8 11:12:42 2014 +0200

    Remove dropbox settings from database and put it into config files

commit 96f6d6b4e7bb4ff5082ae29fb264e0c4c64b147c
Author: Thomas Schank <DrTom@schank.ch>
Date:   Fri Aug 8 10:48:56 2014 +0200

    Add rails-config gem
Remove and ignore some paths (plays nicer with ansible)
Fix security issue dropbox path
Move dropbox settings to dedicated file
Fix issues with media set improvements
ui: dropbox: also give a correct ftp://… link which opens default client

- tested with Transmit and Cyberduck
- only works if domain name is "valid"
- only works if path ends with '.' (directory), otherwise browser tries download
Refactor Zencoder related code (prep for ansible)

Squashed commit of the following:

commit d9c6b6ec7fd3566903ec102ea6faba5ea7386a8e
Author: Thomas Schank <DrTom@schank.ch>
Date:   Fri Aug 15 09:47:11 2014 +0200

    Revert "An another level config file for zencoder"

    This reverts commit fc8c39eb5e0b422b6a42ad5e81ef432e5e1e5101.

commit fc8c39eb5e0b422b6a42ad5e81ef432e5e1e5101
Author: Thomas Schank <DrTom@schank.ch>
Date:   Wed Aug 13 15:15:53 2014 +0200

    An another level config file for zencoder

commit 9c2e54b1b08ddd33e4446f4cededaf2285e26b15
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 12 15:48:22 2014 +0200

    More zencoder test fixing

commit 283bd0400605f1c0a8bc9c429fa969fa1a8a1095
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 12 15:42:36 2014 +0200

    Set and adjust zencoder config file for testing

commit dc7582200f5608724fd6e2998b29068c0624c29b
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 12 14:40:50 2014 +0200

    Syntax fix

commit 36af299717ba089eec6c8551d403e6c93f2668c6
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 12 14:21:07 2014 +0200

    Cleanup and simplify zencoder configuration
Admin interface: context improvements

Squashed commit of the following:

commit 30d2e50026544bdb52873387ab2a729a9998dd56
Author: Michał Podlecki <m.podlecki@op.pl>
Date:   Fri Aug 8 10:18:37 2014 +0200

    Admin interface: show context's related media sets on a separate page

commit eb9ea2d9bfecc15f77048db61365ca306699e0e7
Author: Michał Podlecki <m.podlecki@op.pl>
Date:   Fri Aug 8 11:54:08 2014 +0200

    Admin interface: ability to edit contexts's description
Admin Interface: improve meta key position in contexts

Conflicts:
	config/routes.rb
import: workaround for ImageMagick error-on-warning bug
Admin interface: links "context edit" <-> "key details"
Conflicts:
	app/views/app_admin/contexts/_form.html.haml
Improve session security
SQL Query to find duplicate mkds wrt mks
Refactor preview mechanism
Set session properly in zhdk-auth-contr.; consolidate set_session

Squashed commit of the following:

commit 1b86cc6e99e0e98b32b61cf1f6e4b463087c7f89
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 19 15:43:21 2014 +0200

    Return user object form zhdk-auth/create_or_update_user

commit 7debd8aff069ad8f6b95242d8c1c9169f0168ba6
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 19 15:31:41 2014 +0200

    Resolve naming conflict with rails

commit 0db1009a846313c3286ec27f3765aa0868534b3a
Author: Thomas Schank <DrTom@schank.ch>
Date:   Tue Aug 19 15:25:02 2014 +0200
Add config/zencoder.yml as default to repo
Fix setting of title image