Sort query and add sortPicker widget

Style tweaks

Add class option to sortPicker, add .shared CSS class to have the sort picker
playing well when there are top facets.
Added CLI arg for site URL to EAD bulk export.

CLI tasks have no knowledge of hostname, etc., so can't automatically
generate a full base URL for exported XML. Added a CLI arg to the
EAD bulk export tool to specify a URL. Integrated this into the existing
EAD template.
Base URL now optional, change EAD identifier
The EAD identifier attribute in <eadid> now uses the top
level information object's slug instead of url_to().
Fix asset paths in EAD export from CLI bug #5954
Remove executable bit from normal files
Move Elastica to vendor/

We were loading classes like Elastica/Transport/Memcache twice before this
change, but the problem didn't show up until we started using php5-memcache
which includes its own Memcache class. Moving Elastica under vendor/ avoids
Symfony1 from autoloading it, as we don't need it because it's being loaded
via the Symfony2 namespace loader (see ProjectConfiguration.class.php).
Attach containers to existing ones refs #6579

Physical containers being imported via EAD will now check to see if
there's an existing physical container attached to the collection,
and use that instead of duplicating now.
Enhance statistics output for import:bulk #7108
Fix class name
Add identifier sorting where relevant, fixes #6308

Squashed commit of the following:

commit bb37ea0484ec2a0209d99dd7f0b20905df56ea39
Author: Kehan Harman <kehan@gaiaresources.com.au>
Date:   Wed Feb 12 17:35:12 2014 +0800

    Fix problem error with actor browsing - use addSort so we can then add a
    secondary sort by 'title'

commit 9a440a3a3a0f8114161163e33b63b24dde72cd3b
Author: Kehan Harman <kehan@gaiaresources.com.au>
Date:   Wed Feb 12 11:51:08 2014 +0800

    Adds preference and default sorting by identifier. Adds the sort by
    identifier to the relevant browse forms.
    https://projects.artefactual.com/issues/6308

    Conflicts:
    	plugins/qtAccessionPlugin/modules/accession/actions/browseAction.class.php
Fix verbose flag in import:bulk #7145
Cosmetic change
Fix context in deleteDescriptionTask #7169
Add links to other cultures in info obj templates

Added in index pages of ISAD, RAD, MODS, DC and DACS plugins

Fixes #7122
Rename partial and use class instead of id
Implement translationLinks as a component
Change createOrFetchActor function, refs #7124

Check if there is a match and if that match is related to descriprions in the same repository.
If it's update actor, if not create new one
Change setActorByName function

Check if there is an actor match and if that match is related to descriprions in the same repository.
If it's link that actor, if not create and link new one
Save objects to allow raw queries
Change fetch actor method

Check for actors related to descriptions in the same repository.
If the repository isn't set check for relations with descriptions
without repository